To make myself a copy of the print-and-play (PnP) solitaire boardgame Under Falling Skies I wanted to make the markers more interesting than the originals. I made the aliens based on the original Space Invaders game (but I haven't perfected my own version of those models yet), and made individual 3D icons as markers for the science, damage, and power tracks, and for the location of the excavator. This is the excavator, which I think was my most successful design.
Designed in Tinkercad.
Print with supports only on build plate.
The author hasn't provided the model origin yet.