Door Prop

thingiverse

Keeps a door from being closed accidentally. Sits on top of a door, acts almost like a spring. Will break if the door is slammed hard enough, but it's a quick and easy print, and held up better than I expected. Added felt stickers to keep from scratching the trim. Used to keep the room with the cat's litter box open. Easy to forget and close the door, leaving the cat in a bad situation.