The idea for the design was taken from the wooden model here   https://cults3d.com/en/3d-model/various/hedgehog-pencil-holder-pdf. I made it as a birthday present for a friend of mine who collects hedgehogs.

To assemble it you need to print 2 pcs body1.stl, 2 pcs body2.stl, left.stl and right.stl.
Use glue to join them together and enjoy the result.

P.S. Do not forget that hedgehogs must not be fed with raw meat or eggs. They are not able to digest milk; it can result in diarrhea. Do not offer them nuts, seeds or hard food such as raw carrots as they may stick to the palate (especially peanut halves). ;-)