Safety Squints Required

Saw someone making something similar as a small sticker.   I wanted a sign and also changed what the sign says (the word "engage" seemed too high-brow for me).  Recreated the face in GIMP from a safety glasses pictogram, exported the .svg file, and created the 3D model in my program of choice.  Exported to .stl at the highest resolution, so file is a little bit on the big side, but whatever.

I printed this in 2 colors.  White base, then material change to black for the outlines, text, and images.  Once it was printed, I backfilled in the “CAUTION” area with watered-down yellow acrylic, then ran sandpaper over the top when dry to clean up the text.