Made a simple 3d printed version of the sticker markers. Pretty handy for spreading around objects and tracking in marker mode.
Added another version that uses BluTack to stick on non horizontal surfaces
Cool! Requires a dual-filament printer, I presume?
It could be done with a regular printer, but requires at least 1 material change. That would be for a single layer of white. The my multimaterial does 6-8 switches for the coin and 2-3 for the “tacky” version. THis gives multiple layers of white, but a single layer might be fine.