In my restless dreams, I see that keychain…
There are two versions of it:
Printed 0.4_nozzle version at 0.12 layer height, 45 degree angle and with regular supports (as shown on the third photo). Also enabling Arachne wall generator helped a lot with small details.
I've also included a painted multicolor version for BambuStudio.
Don't be shy to post a make!