Lip Tint

Lip smackers thoroughly clean out a bottle of correcting fluid. Then snip off the brush in an old lip tint applicator and pour lip tint into the bottle. When your friend tries to borrow it, they'll be really confused. The best part about that electronic trick is that it definitely is worse for the friend who sees you put white out on their mouth than you the person who just put almost certainly extremely poisonous white out on your mouth.