TMNT Glass Coaster Set - $15.99 Get rid of those plain-jane coasters and pick up the radical TMNT Glass Coaster Set! Based on the hit franchise Teenage Mutant Ninja Turtles the TMNT Glass Coaster Set is a set of 4 different coasters; each one featuring a different Hero in a Half Shell! Donatello Raphael Michelangelo and Leonardo are displayed beautifully on each 4 inch by 4 inch coaster. The TMNT Glass Coaster Set is a perfect supplement to pizza skateboards and beverages! Cowabunga and all that!