Keyring and SCAD file for number plate Keyrings but I modelled mine to say Jack as a name plate.

you need to download the font file, and rename it as per the instructions in the scad file when you open it.

This is a remix of the keyring by “code and make” using the scad. you also have to download the font and perhaps rename it then drop it in the same location as the scad file. seems like a faff but its worth it.

Finally the original SCAD files I believe are in single colour. I went to layer 12 and put a change filament in once I had sliced it on the bambu slicer . mine i did green base colour with a change to yellow. It automatically printed a purge tower but I have disabled this on the 3mf file as there are several yellow layers.