Backpacking / Travel Bidet
Screws onto a 28mm water bottle thread (like most soda and smart water). Tweak to a model I found online and can't remember the source. If you know where let me know and I'll credit them. I changed it so it seals better on a bottle without requiring any gaskets. it's also slightly lighter.
I have had these crack if over tightened when printed in pla. when printed in tpu it's indestructible.