I liked the original PTFE clip design but I do not yet have my MMU2, so I created a quick multicolor version. At 0.2 layer height, filament change at 0.80 and then back at 1.40. You can have any two colors here, or just print in one color for an embedded number.
I plan to print the original once I have my MMU2 up and going.
The author remixed this model.