Fun Ender 3 (Bowden extruder) Extruder Knobs

I've seen a number of extruder knob designs. I wanted to add my own personality to my printer and these have been great. They print very quickly and can be functional if desired. For me, they are decorations. R2D2 actually looks like a little droid printing a part, complete with sound effects. Noisy printers finally have a purpose! Check them out in action: https://youtu.be/eb2SBfCWmTI

I have included four designs and may add more.
Right facing arrow illusion
Star Circle ambiguous illusion
Flower circle ambiguous illusion
and my favorite - R2D2

Inspired and remixed from:
https://www.thingiverse.com/thing:3169391
https://www.thingiverse.com/thing:4667420
https://www.thingiverse.com/thing:3176144
https://www.thingiverse.com/thing:3878237
https://www.thingiverse.com/thing:2911133
https://www.thingiverse.com/thing:2776404