2 piece "Radioacive Spiders" warning sign.
Both Models have the GCode with a Filament colour change at the appropriate layer. If you desire to print from the .STL's (for those who print in PLA), in Prusa Slicer Follow the instructions:
https://blog.prusaprinters.org/color-print/
Made in Fusion 360, spider is modeled using a real photo of a spider, then tracing and simplifying the top view into fit curves and mirroring along the axis.
I print in PETG:
Yellow is Novamaker Yellow PETG
Black is Novamaker Black PETG
Red is Prusament Carmine Red PETG (<3 this stuff!)
The author hasn't provided the model origin yet.