Hey it's a little cheesy but found that if you cut or tare the cello for the undercrowns cleanly this sticker peels right off and can be stuck to things. Ive put one on a bullet punch and a couple on my cell phone case, but they've started to wear off on the cell phone case. Figured I'd share if anyone else could get any use out of them. Thinking about littering my herfador with them!