These are some modified troops from tomasotwo's Dune files to use in place of the cubes from Dune: Imperium. I just found the files I liked the best, and resized and removed the bases. I labeled them as the colors I used them for, rather than the intended faction (U = blue as in Magic the Gathering).

*** Edit: Shimmery astutely noticed that I had mistakenly uploaded an older version of the red troop. See https://www.thingiverse.com/thing:5222880 or DI_TroopRv2 for the corrected file.