Colorized version of the Rocket Engine MK4 made for the MMU3 with 5 different colors.
There exist other version of this for the XL, but this is the best one: I've painstakingly made sure that every single polygon has the correct color. This means less unnecessary filament changes and a faster print, while being more colorful.
The author remixed this model.
I've colorized the original model and touched up the model in blender a little to make the print easier in some places, but the changes are indistinguishable from the original.