BB Extruder Spinner

I wanted a new knob/spinner for my Ender 3 but could not find what I was looking for. I wanted something that could look cool when turning but also functioned well for a knob when I want to crank the extruder in or out. I was inspired by two other Things. This one: https://www.thingiverse.com/thing:2653130 which i liked but when I saw what inspired it, which was this: https://www.thingiverse.com/thing:2307920 Well, I simply had to combine the two.

This knob takes regular 4.5mm bb's like you would put in your bb gun and it should fit on any normal 5mm stepper motor shank.