Heat Change Mug: Game Boy heat change mug, Simply add a hot drink to see the screen of the classic handheld console load up with a game. Hot Item: For tea obsessed, the coffee lovers, or hot chocolate connoisseurs, the perfect heat change mug makes every sip even better. Show off your style or give to friends for birthdays party or any fun occasion. Boxed & Ready To Give: This 10 oz. packaged in a decorative box suitable for gift giving is the perfect ready-to-go gift for birthdays and special occasions. Hand wash only to keep your collectible like new. Not safe for microwave use & Caffeine Free. Quality Collectible: A premium collectible, this heat changing mug is a unique addition to any fan. Give this cool collector's item to dads, moms, grads, fans, kids, gals & guys who love pop culture fun! Original Giftware: For those in the fandom looking for novelty items and all things geek, crazy, and unique, heat change mug coffee mugs is your best source for top-selling toys,collectibles, mugs and novelties.