Dummy 13 with a cowboy hat directly merged into his hand, so it's as if he's holding or waving his cowboy hat. The STL is for his left hand, you can mirror it in the slicer to get the right hand
These are the settings I used, YMMV:
PLA
15% infill
Organic supports on build plate only.
.20mm layer height, but parts of the hat were rather thin, may be wise to use a smaller layer height
Gray hat printed at 100% scale
The main recommendation with supports is to avoid having support materials generate inside the socket joint, since that's both the most important part, and the hardest to sand if needed
The author remixed this model.
Merged the cowboy hat and the “knife hand” object into one object. No changes beyond that