Drip Sprinkler

I use these to water individual pots in my yard. I don't like the drip sprinklers you can buy, they either have a fixed rate (useless) or they are poorly adjustable for low flow rates. These ones are great because they are fully adjustable from a stream to a single water drop per second. Print at 0.1mm (it is fine thread) and 100% infill.

https://youtu.be/eEVmcCf8Txk