To change colors, in Cura: Extensions -> Post Processing -> Modify G-Code
Add a script -> Pause at height
Add 3 times
Change at layer height 12, 14, and 16 (5, 7, and 9 for thinner V2)
Change retraction to 25mm
Tips:
Print several as one of them will have some artifacts from filament change
Bend over hot water and on a round cylinder
The author remixed this model.
combined with a wristband