Hi! today I made a keychain and a magnet of a Marshall from paw patrol! 
It is designed so it can be printed multicolour even if you dont have multicolour printer. You just set up automatic change of colours in your slicer, print one colour, pause the print, change the filament, print another colour etc…
Recommended size is 60mm and recommended height is 4 mm 
I hope you like it! :)