знак застереження, warning sign, work, fun

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5773689.

Now for your ukrainian fiends, stay strong! Good warning sign for your workspace ^^ Scale the STL file with your slicer to the size you want Print with single extruder in dual colors is possible. Pause the printing after the plane surface is done, change filament and continue printing... voila!