It really works, once you place the warm water in the cup, it quickly transforms the black design into the Marauders Map. Also, once you place the hot cup under cold water, it changes back to the original black colour, however as it is still hot, the cup changes back into the Map, it is very fascinating and ideal for the Harry Potter fans! I would show a video however it isn't letting me lol.

Perfect fit good quality tee - love the pic

Good quality! It fits perfectly.

Super t shirt. Parfait et taille nickel pour mon homme

Top qualité, dessin genial. Exactement ce que j'attendais

Looks great and good quality...perfect for any star wars fan!

Having seen the Wonder Woman film i wanted to show my love by wearing a t-shirt that wasn't overly garish or cartoonish, this is simple yet classy

very nice, good quality, i,m happy

good quality and good look

Great looking shirt, exactly what I was looking for

Great shirt, good quality