A Cure for Acne

If I were to make a useful toy, the toy would be a face. A face that has pimple-like protrusions that can be popped. Maybe it would be a mask that one can put on, popping all the pimples on the mask instead of one's actual face.

Then, when you've satisfied your compulsion, you leave the bathroom mirror, take off the mask, fold it up, and be on your way, with your face unscathed, and clear skin.