I found these STL's somewhere else on the inturwebz but cannot remember where; so I'm uploading them here to share with everyone that's asked for them.

I am not the author of these files. They printed just fine for me in PETG.

Make sure you print the head with much less infill than the body, otherwise he can't stand up and falls forward.

-edit- Original is here: https://www.myminifactory.com/object/3d-print-yoshi-9937