Trick Mugs Black Friday Deals
World's Best/Worst Brother Prank Mug
World's Best/Worst Brother Prank Mug
World's Best/Worst Brother Prank Mug

World's Best/Worst Brother Prank Mug

Regular price $17.99 $13.50 Sale

Prank your brother with this hilarious color changing coffee mug. One side shows World's Best Brother, while the other side reads World's Worst Brother.

Is your brother left or right handed? Choose which hand your brother holds his mug in so that the prank can work to its full effect. 

· Heat activated, color changing mug
· Starts out black and changes color in 15-30 seconds when a hot beverage is added
· Available in 11 oz size
· Microwave safe
· Machine washable



how trick mugs work.