This is a simple hack on how to 3D print multiple colors/materials in the same layer without the need of a printer with multiple extruders/AMS/MMU. The process is simple and works great for any print that doesn't have more than 3-10 layers in multiple colors (it could work for any print, but you are doing the AMS/MMU job, changing the filament manually, so it would take forever to print a color model with lots of color changes).
Chapters:
0:00 Intro
0:32 Prepare the CAD for color printing (Onshape)
3:29 Slice to multi-color print the tag
6:10 Tool change Gcode
6:58 Print results - amount of filament lost for the printed part
8:08 Printing process with filament changes