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An apparatus for releasable attachment to a fishing rod, said apparatus including: a barrel having a first end and a releasably sealed first region; wherein the first region of the barrel includes a space within the barrel substantially bounded by a second end of the barre

An apparatus for releasable attachment to a fishing rod, said apparatus including: a barrel having a first end and a releasably sealed first region; wherein the first region of the barrel includes a space within the barrel substantially bounded by a second end of the barrel and a protrusion disposed inside the barrel; and a means of selectably adjusting the volume of the first region including adjusting the position of the protrusion along a length of the barrel; and wherein when the protrusion is disposed inside the barrel, it extends radially-inwardly of the barrel in a substantially transverse orientation to an elongate axis of the barrel; and a means of controllably feeding a propellant into the releasably sealed first region; and a means of expanding the propellant whereby the said expansion of the propellant causes a projectile disposed within the barrel to be propelled outwardly of the barrel via the first end.

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The invention claimed is: 1. An apparatus for propelling a projectile, said apparatus including: a barrel having a first end and a releasably sealed first region, wherein the first region of the barrel includes a space within the barrel substantially bounded by a second end of the barrel, wherein t

The invention claimed is: 1. An apparatus for propelling a projectile, said apparatus including: a barrel having a first end and a releasably sealed first region, wherein the first region of the barrel includes a space within the barrel substantially bounded by a second end of the barrel, wherein the barrel includes a plurality of apertures along a longitudinal length thereof, said plurality of apertures extending through the barrel from an exterior of the barrel to an interior of the barrel so as to be transverse to a longitudinal axis of the barrel, and wherein all of the plurality of apertures being aligned in a row which is generally parallel with the longitudinal axis of the barrel; a protrusion for selective insertion within any one of the apertures along the longitudinal length of the barrel to selectively adjust a volume of the first region, wherein the protrusion extends radially-inwardly of the barrel in a substantially transverse orientation to an elongate axis of the barrel; one or more seals for sealing a remainder of the apertures into which the protrusion is not selectively inserted along the length of the barrel; a means for controllably feeding a propellant into the releasably sealed first region; and a means of expanding the propellant whereby the expansion of the propellant causes a projectile disposed within the barrel to be propelled outwardly of the barrel via the first end. 2. An apparatus as claimed in claim 1 wherein the barrel includes a pipe having a cylindrical cross-section. 3. An apparatus as claimed in claim 1 wherein the barrel includes a polyvinyl chloride material. 4. An apparatus as claimed in claim 1 wherein the propellant includes butane gas. 5. An apparatus as claimed in claim 1 wherein the propellant includes a mixture of butane gas and air. 6. An apparatus as claimed in claim 1 wherein, when the first region of the barrel is releasably sealed, it substantially prevents the propellant disposed within the first region from escaping. 7. An apparatus as claimed in claim 1 wherein, the first region of the barrel is releasably sealed by the projectile loaded into the barrel via the first end, whereby the projectile abuts against the protrusion protruding into the barrel to form the releasably sealed first region. 8. An apparatus as claimed in claim 1 wherein the apparatus includes the projectile including at least one of: a sinker; and a burly pellet. 9. An apparatus as claimed in claim 1 wherein, the means for controllably feeding a propellant comprising the propellant being stored in a canister before being fed into the barrel. 10. An apparatus as claimed in claim 9 wherein the canister is able to be mounted to the barrel, whereby propellant within the canister is able to be delivered into the barrel. 11. An apparatus as claimed in claim 1 including a cap removably attachable to the second end of the barrel. 12. An apparatus as claimed in claim 11 wherein the cap includes a pressure valve to allow for automatic release of at least some pressure from the first region of the barrel when a pressure level within the first region exceeds a predetermined pressure threshold. 13. An apparatus as claimed in claim 1 including a shock-absorbent material to absorb the shock waves caused by the expanding propellant. 14. An apparatus as claimed in claim 13 wherein the shock-absorbent material includes at least one of: a gel; and rubber. 15. An apparatus as claimed in claim 13 wherein, the shock-absorbent absorbent material is disposed on the cap. 16. An apparatus as claimed in claim 1 wherein the means of expanding the propellant includes an ignition means for igniting the propellant. 17. An apparatus as claimed in claim 16 wherein the ignition means includes a spark plug. 18. An apparatus as claimed in claim 16 including a trigger for triggering the ignition means. 19. An apparatus as claimed in claim 18 wherein the trigger means is adjustably positionable relative to the barrel. 20. An apparatus as claimed in claim 16 wherein the ignition means is adapted to ignite the propellant at a plurality of locations within the first region. 21. An apparatus as claimed in claim 20 wherein the ignition means includes a plurality of spark plugs arranged at varying locations along the length of the barrel. 22. An apparatus as claimed in claim 21 wherein each of the plurality of spark plugs are able to be fired either concurrently or selectively. 23. An apparatus as claimed in claim 1 including an attachment means for releasably attaching the apparatus to a fishing rod. 24. An apparatus as claimed in claim 23 wherein the attachment means includes a clamp. 25. An apparatus as claimed in claim 1 including a removably attachable handle grip. 26. An apparatus as claimed in claim 25 the removably attachable handle grip further including a pair of removably attachable handle grips. 27. An apparatus as claimed in claim 1 in combination with a handle, the handle including: a first end and a second end, the first end of the handle being releasably engageable with the second end of the barrel; a housing adapted for releasably receiving a propellant canister; and the means of controllably feeding a propellant comprising a means for selectively moving the propellant canister within the housing between at least a first and a second position wherein, when the propellant canister is arranged in the first position, the propellant canister engages with the barrel so that propellant is able to be supplied into the first region of the barrel, and, when arranged in the second position, the propellant canister is disengaged from the barrel so that propellant is not able to be supplied into the first region of the barrel. 28. An apparatus as claimed in claim 27 wherein the handle includes an outer surface adapted for gripping by a user's hand. 29. An apparatus as claimed in claim 28 wherein the outer surface includes a rubber layer. 30. An apparatus as claimed in claim 27 wherein the handle includes a means of mounting a fishing line spindle on an outer surface thereof. 31. An apparatus as claimed in claim 27 wherein the means of selectably moving the propellant canister within the housing includes: a depressable button extending inwardly of the housing from an outer surface of the housing, whereby when pressed inwardly of the housing, the depressable button is adapted to abut against a rear of the propellant canister so as to force the propellant canister towards the second end of the barrel and into the first position within the housing; and a biasing means disposed between the propellant canister and the barrel which urges the propellant canister away from the second end of the barrel into the second position when the depressable button is released by the user. 32. An apparatus as claimed in claim 31 wherein the biasing means includes a spring. 33. An apparatus as claimed in claim 27 wherein the handle includes an opening disposed at the second end including a cap for covering the opening. 34. An apparatus as claimed in claim 33 wherein the propellant canister is able to be slidably inserted into the housing via the opening when the cap is removed. 35. An apparatus as claimed in claim 27 wherein the handle includes a shape characteristic resembling a fishing rod handle. 36. An apparatus as claimed in claim 1 in combination with a fishing rod, wherein the fishing rod includes: a first part coupled to a second part wherein said first and second parts are adjustably arrangeable relative to each other between at least a first and a second position; wherein when disposed in the first position, the second part is retracted relative to the first part; and when disposed in the second position, the second part is extended relative to the first part; a biasing means for biasing the first part and second part into the second position; and a releasable securement means for holding the first part and the second part in the first position, whereby release of said securement means allows the first and second parts to be urged into the second position as a result of the biasing means. 37. An apparatus as claimed in claim 36 wherein the releasable securement means includes a latch. 38. An apparatus as claimed in claim 36 including eyelets disposed along lengths of the first and second parts. 39. An apparatus as claimed in claim 38 wherein at least one of the eyelets is pivotably coupled to the second part and is adapted to be compactly folded against the second part. 40. An apparatus as claimed in claim 39 wherein the eyelets are spring biased to extend substantially perpendicularly relative to the second part. 41. An apparatus as claimed in claim 36 including a means of extending a length of the barrel. 42. An apparatus as claimed in claim 41 wherein the means of extending the length of the barrel includes a barrel extension which is releasably attachable to the first end of the barrel. 43. An apparatus as claimed in claim 42 wherein the barrel extension is attachable to the first end of the barrel by screwing the barrel extension onto the first end of the barrel. 44. An apparatus as claimed in claim 43 wherein the barrel extension may include different dimensions to that of the barrel. 45. An apparatus as claimed in claim 36 including a depressable tab extending inwardly of the barrel for releasably retaining the projectile within the barrel before it is propelled outwardly of the barrel via the first end. 46. An apparatus as claimed in any one of claims 1 to 45, further comprising the projectile, wherein the projectile includes a burley dispenser for controllably dispensing burley in water, the burley dispenser including: a permeable enclosure having a releasably sealable opening via which a barley pellet is able to be inserted into the permeable enclosure; said burley tablet being adapted to disintegrate upon contact with water into burley sub-particles having relatively smaller dimensions than the burley tablet; whereby the burley sub-particles are able to flow outwardly of the permeable enclosure via a permeable surface of the permeable enclosure whilst the permeable surface substantially retains the burley tablet internally of the enclosure. 47. An apparatus as claimed in claim 46 wherein the permeable enclosure includes a rigid plastic material. 48. An apparatus as claimed in claim 46 including a means of attaching the burley dispenser to a fishing line whereby the burley dispenser is able to be cast out. 49. An apparatus as claimed in claim 46 wherein the burley dispenser includes a flotation means for floating at least a portion of the permeable enclosure. 50. A method of propelling a projectile from a fishing rod including the steps of: (i) providing the apparatus as claimed in claim 1; (ii) selectively setting the volume of the releasably sealable first region of the barrel of the apparatus, and wherein the volume of the first region is set by unsealing one of the apertures and inserting therein the projection; (iii) feeding the propellant into the first region of the barrel when sealed; and (iv) expanding the propellant whereby the expanding propellant causes a projectile disposed within the barrel to be propelled outwardly of the barrel.