Friend of mine got the original keychain, but it had 2 small flaws in it. Regular 25mm keyring didn't fit into it and the letters wore off during normal use. He was still using it though, but as a X-mas present I made him a better one.

Use 0.25mm line width on the first layer (even with 0.4mm nozzle) to get all details printed. That means you need to have great bed adhesion, I used textured PEI sheet. I printed 3 units at once because that will not increase purged filaments, but that way you have triple chance to get successful print. And yeah, 2 other ones had minor flaw…as printing too small line width has it's risks.

Print logo side down! Included are BambuLabs 3MF, which doesn't seem to work in any other software, and also generic 3MF. Also included is regular STL, which you have to colorize yourself in the slicer (and turn 180 degrees).