A cat's head wheelchair joystick decoration. Basically, I took the cat head puppet model uploaded by mizliz and added a socket ot the bottom which is designed to fit a specific wheelchair joystick. I make no claims that this part will fit any or even the majority of wheelchair joysticks. I have, however, included the FreeCAD model if you would like to customize it for your application.
It's a little bit rough, and a little bit crude, but it fits the joystick snugly, and delighted the owner of the wheelchair.