A cool Deaths Head Hawkmoth as a keychain
Made to be 2 color, with a color change at layer height
As it loads in this size you can change color at layer 16 if you use .2 layer height, it can be resized but just check which layer to change color if you do.
I use
.2 layer
.4 nozzle
2 or 3 walls
10%+ infill