World's Smallest Microwave
I promise this microwave wasn't a toy and actually worked.

Looks pretty normal here, since there's nothing next to it to provide scale. But wait!

There's the massive Mister Hand. Dang! A plate won't even fit. Unless.....

Angle it slightly and it'll go. Don't try this with any kind of runny food.

How 'bout some hot chocolate? Thanks to about 2 mm of clearance, today is your lucky day. Cheers!