Erlenmeyer Flask created for the Science Track marker for Under Falling Skies, the 9-card PnP (Print-and-Play) solitaire space invaders game.

https://boardgamegeek.com/boardgame/273779/under-falling-skies-9-card-print-and-play-game

This flask is solid up to the top of the 'liquid' it contains, then hollow. You can insert a pause at the top of the solid (or liquid) part, then change from your chosen color to a transparent/translucent filament for the empty glass top.

Power marker (lightning bolt): https://www.thingiverse.com/thing:5223685 Excavator: https://www.thingiverse.com/thing:5223630 Damage marker (explosion): https://www.thingiverse.com/thing:5223663