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A coaster for a beverage container has an enclosed base and a cooling material encapsulated therein. The enclosed base has a top surface with a substantially planar portion. The beverage container engages on the top surface of the base. In another embodiment, a coaster assembly has a base portion an

A coaster for a beverage container has an enclosed base and a cooling material encapsulated therein. The enclosed base has a top surface with a substantially planar portion. The beverage container engages on the top surface of the base. In another embodiment, a coaster assembly has a base portion and a collar portion. The collar portion attaches to the base portion and reveals at least a portion of a top side of the base portion.

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What is claimed is: 1. A coaster for a beverage container comprising: an enclosed base with a substantially-planar top surface for engaging the beverage container; and a cooling material comprising a gel encapsulated within the base, wherein indicia is present on the top surface. 2. A coaster fo

What is claimed is: 1. A coaster for a beverage container comprising: an enclosed base with a substantially-planar top surface for engaging the beverage container; and a cooling material comprising a gel encapsulated within the base, wherein indicia is present on the top surface. 2. A coaster for a beverage container comprising: an enclosed base with a substantially-planar top surface for engaging the beverage container; and a cooling material including polypropylene glycol encapsulated within the base, wherein indicia is present on the top surface. 3. A coaster for a beverage container comprising: an enclosed base with a substantially-planar top surface for engaging the beverage container; and a cooling material encapsulated within the base, wherein indicia is present on the top surface, wherein the cooling material occupies between 80 to 95% of an interior space of the enclosed base. 4. The coaster of claim 1 wherein the base is comprised of a first and a second piece. 5. A coaster for a beverage container comprising: an enclosed base with a substantially-planar top surface for engaging the beverage container; and a cooling material encapsulated within the base, wherein indicia is present on the top surface, and wherein a first peripheral portion that is connected to the base portion. 6. A coaster assembly for a beverage container comprising: a base portion containing cooling material having a top side and a bottom side; a collar portion wherein the collar portion attaches to the base portion and reveals at least a portion of the top side of the base portion. 7. The coaster assembly of claim 6 wherein the area on the top side of the base portion revealed by the collar has indicia. 8. The coaster assembly of claim 6 wherein the collar portion has indicia, the indicia of the collar portion being related to the indicia of the base portion. 9. The coaster assembly of claim 6 comprising a second collar portion, the collar portion and second collar portion each capable of being separately removably connected to the base portion. 10. The coaster assembly of claim 6 wherein the collar portion is snugly fit to the base portion. 11. The coaster assembly of claim 6 wherein the cooling material contains polyethylene glycol. 12. The coaster assembly of claim 6 wherein the collar portion is configured to depict a distinctive object. 13. A cooling coaster comprising: a base portion having a top surface for receiving a beverage container; and a material located within the base portion having a cooling state and a room temperature state, the cooling state being at a temperature less than room temperature, wherein the material is in the cooling state before the beverage is in contact with the top surface, and the material warms towards the room temperature state while the beverage is in contact with the top surface. 14. A coaster for supporting a container and for cooling a beverage contained within the container, the coaster comprising: a base comprising a top surface, a body and a bottom surface, the top surface of the base being circular in shape and having a center point and raised lip, wherein the raised lip extends along the circumference of the top surface of the base, wherein the top surface of the base has a substantially planar portion extending from the center point of the top surface of the base to an inner edge of the raised lip, wherein the raised lip is perpendicular to the substantially planar portion of the top surface of the base; and a cooling material completely encapsulated within the base of the coaster, the cooling material having a cooling state equal to or less than 32�� F. 15. The coaster of claim 14 further comprising a baffle within the base of the coaster. 16. The coaster of claim 6 wherein the cooling material is a gel. 17. The coaster of claim 6 wherein the cooling material is a liquid. 18. The coaster of claim 6 wherein the cooling material occupies between 80 to 95% of an interior space of the enclosed base. 19. The coaster of claim 6 wherein the base is comprised of a first and a second piece. 20. The coaster of claim 13 wherein the cooling material is a gel. 21. The coaster of claim 13 wherein the cooling material is a liquid. 22. The coaster of claim 13 wherein the cooling material includes polypropylene glycol. 23. The coaster of claim 13 wherein the base is comprised of a first and a second piece. 24. The coaster of claim 14 wherein the cooling material is a gel. 25. The coaster of claim 14 wherein the cooling material is a liquid. 26. The coaster of claim 14 wherein the cooling material occupies between 80 to 95% of an interior space of the enclosed base. 27. The coaster of claim 14 wherein the base is comprised of a first and a second piece.