Das Filament PETG
Melonengelb (Melon Yellow) / Weiß (White)
I've added 2 versions of the butterfly:
The parts starting with MMU are designed (but not tested) for multi color / multi material printing.
The other parts are design for single extrusion printers (like the one I'm using). I've used this service https://blog.prusaprinters.org/color-print/ to insert a filament change command at layer height 0.6mm into a gcode file rendered by Slic3r / PrusaSlicer. Might work with other slicers, too.
If no MMU part is available but a standard one, just print the standard one.
You've to print Windmill_8_Wings-Cap-Body1.stl and Windmill_8_Wings-Wings-Body.stl twice.
Grep both Windmill_8_Wings-Wings-Body.stl parts
Lay them over each other and make sure that the wings are alternately up and down.
Glue the ends of the wing with a half twist to the center.
If all wings are glued to the center, glue the Windmill_8_Wings-WingCover-Body1.stl to the center
Stack the parts like this. The only glued parts are the very left (cap) and the 2nd from the right (WingCover)