Custom keycaps that I made for a shortcut keypad that attaches to my wireless space mouse.

I do think that this design will work on most keyboards but haven't tested that.

this design is a remix of one that was published on the Fusion 360 gallery the first link is to that post, all credit goes to him on the mechanism. https://gallery.autodesk.com/projects/168857/keycap-for-cherry-mx-switch-row-5?searched=

the way it was printed was face down and once I saw that the first couple of layers where done I switched the colors and then back to give a different color to the embeded symbol/ key, it did take a few tries but I'm really happy how it looks.