Shower Handle

This is a temporary shower handle I made, my shower handle broke as well as the threads on the valve stem, so I needed something to turn it on and off until we get a new valve. This seats over the valve stem and with a gentle push stays wedged on, but if you still have the screw it could be screwed on for long term use depending on what you print it out of.
 

This has a 6mm x 10mm rectangular valve stem opening with hole for screw.

I printed this with PLA (for temporary use) with the open end (the end that goes toward the valve) toward the build plate.