Check engine keychain

Putting the model together is simple the engine sign doesn't snap into the back plate bit sits on the top add a little bit of glue into the gaps on the backplate and it should stay stuck down well.

This was made for people who had printers who could not change colours mid print and wanted the check engine sign a different colour. I added a gap in a backplate for the check engine sign to slot on top of to then be glued on.