This backpacking bidet screws on a standard water bottle like the famous smart water bottle.
It needs a platypus quickdraw backflush ring to create a seal to prevent leaking. Which is handy because this way you're always carrying an extra ring for when you inevitably lose it in a stream.
I used a previous version in PLA for the entire pacific crest trail and it held up great.
The author marked this model as their own original creation.