Hidden message mugs: insert coin, continue, round 1, power up, next level

It's not game over man!! The day's just getting started. Forget a pocket full of quarters! You've got a pot full of coffee and a mug ready for the start button! Go!! • Ceramic • Black glossy finish when cold • Reveals the print when exposed to hot liquids • Dimensions: height - 3.54'' (8.9 cm), diameter - 3.35" (8.5 cm) Note that in some instances the coating might not be 100% opaque and an outline of the design might peek through a little. You shouldn't put mugs in a microwave or dishwasher since it can damage the coating. FREE SHIPPING! (Tax not included.)