Put your hand in my mouth hole

This is so brilliant and straight to the point alternative operation.
These cool shopping bag ads for Stop N' Grow, a special spray used to stop one from biting their fingernails. The bags show the lower half of a person's face with the mouth where the handle of the bag is, so it looks like your fingers are in the person's mouth. That's clever, but speaking as someone who's been alive for 29 years and been a part of the male gender for 28 of those years, I can say that some guy, somewhere, is going to try to be funny and stick some other appendage in those handle holes. I'm certainly not trying to be ribald, I'm just drawing a conclusion based on years of observation. Stop N' Grow may have tapped into a demographic they weren't even aware of