GelGems® bag (small: paper airplanes)

I put a few on my bedroom mirror and the soft gel material really does cling perfectly without leaving any sticky residue when I move them around. The paper airplane shapes are so detailed they almost look real from across the room.

My kids fought over who got to stick the little paper airplanes on the kitchen window, and the gel really does stay put without leaving any sticky residue behind. Even after a week they haven't peeled off, which is way better than the cheap plastic ones we had before.

The gel is so soft and pliable that my toddler pressed them on without me even helping, and they stick to the glass just right. The paper airplane designs look surprisingly detailed up close, and they peel off clean without leaving any residue.