One day I got a little obsessed with adding color to everyone's favorite calibration cube. I searched thingiverse and found out there are lots of multi-color variations out there, no need to make a new one!
Then I ignored those facts and made my own. 3 kinds!
xyzColorCube_v2 (0,1) changes the color of the letters for each axis.
xyzColorCube_v2a (0-2) adds a 3rd color for the cube's shell in a checkerboard pattern
xyzColorCube_v2b (0,1) uses intersecting planes to change the letter colors