Garden Sprinkler is able to be printed in place, and should screw into common garden hose threads.
There are also adapters in case you don't have the end you need on the hose, and a stand to put the sprinkler on, and to stick it into the dirt.
This version I didn't have an opportunity to test, but the only difference between this and the version I did test are larger inner channels, as I feel there was too much pressure buildup in the older designs.
The design should accommodate gaskets to help with the leakage.
I had success printing all this with PLA, ~0.2mm layer height.
The author hasn't provided the model origin yet.