My changes to the original model:

This is a remix of the bones of the right hand and distal ulna and radius from “My Segmenter's” full skeleton on the NIH3D Print Exchange under CCBY license. I extracted the bones of the right hand and the distal ends of the radius and ulna from the full skeleton. To optimize the bones for this particular model, I used Meshmixer's “remesh” and “make solid” tools to create connections between the bones so it would print as one piece. 

I created the base in Blender and cut the combined model in Bambu Slicer, adding connectors.

I printed this with 0.20 mm layers, 2 walls, 15% infill, tree supports at 30 degrees for the hand (2 top interface layers, top interface spacing = 0, top z distance = 0.20). I used Sunla matte PLA in bone white and Panchroma charcoal black. Be careful removing supports. I probably should have made the connectors a little bigger, but if you use a fast-drying glue it will set fast.

The model is life size and anatomically accurate since it is derived from a CT scan, although the original model was very low poly. This could be used as an anatomical reference or just as a cool Halloween decoration.

Generic 3mf on Printables.