Great for those emergencies when you have to use a public restroom and find the stall door broken.
Remove parts from card insert cylinder into the base hole(may need firm pressure to seat it) with base piece on outside of door feed post through the gap then slide inner bar piece over the post until snug then you can use the dual hole flat tab to help secure it together if needed sliding it on as neccesary to tighten the grip.
Printed at .20 layers, arachne walls, i have trees (auto) > Trees Hybrid with bed only and remove small overhangs checked.. it may create small trees to help stabilize the cylinder piece, i have had luck with just the tabs holding it in place.
Simple stupid idea i came up with for fun.