The only credit I can claim for this Celtic cross is the idea, and configuring the Bambu keychain maker, plus the colour choices. Keychain maker is currently being tested before release, and I was fortunate to be given access. I printed on an A1, first layer 0.16mm, first layer speed 20mm/s so the fine detail stood a chance of sticking to the bed. There are two versions on the plate; identical, except one has a hole in the back to place a 15mm flat magnet if you like. I use an AMS, hence four colours, but you can colour it as you prefer.
I have to put this on the make as per Bambu protocol:
Powered by Image to Keychain from MakerWorld (https://makerworld.com/makerlab/imageToKeychain)