I modeled this octane keychain based on octane's photo you can resize or reslice it for 0.2 nozzle if you want.

Also it is two sided so you can see your favorite character from both sides of the keychain

i am not shure which file should i upload so i uploaded all of them even the .OBJ

if you want to look better you should print it bigger because it has a lot of thin lines or with smaller nozzle.