How I made this :

• pick a cat stl : I found mine here (thanks loubie!) https://www.thingiverse.com/thing:2690075 (now on printables : https://www.printables.com/model/25235-schrodinky-british-shorthair-cat-sitting-in-a-boxs )
• low-poly it with andrew_sink's 3D Low Poly Generator (see here : https://www.prusaprinters.org/prints/35669-low-poly-cat )
  • this step isn't mandatory, I just wanted to try that and was amazed at the result
• import in PrusaSlicer
• activate MMU printer profile
• paint according to your cat using the “multimaterial painting” feature (see the model on pic 2!)
  • ps : the eyes were drawn with a sharpie after printing
• print :) !