Start with White, then go Black. 2 colors/ 1 change total.
Banksy Collection: https://www.printables.com/social/336804-triple-g-workshop/collections/359901
Link to all multicolor art: https://www.printables.com/social/336804-triple-g-workshop/collections/345687
Quick Guide to changing filament~
https://pestcontroloffice.com/use.asp
The author remixed this model.