I found one. I also had two Evolutions Sandtroopers. I don't have any VOTC or still even commtech/OTC Stormtroopers yet, so I'd removed one of my evolutions Sandtrooper's armor to make him a dirty normal Stormtrooper.
Now I've done that to my TSC Sandtrooper, and put his gear on one of the Evolutions Sandtroopers. I'm thinking about customizing/removing the dirty spots from the TSC Sandtrooper eventually- I have no desire to pay the $20+ one needs to get their hands on a real VOTC Stormtrooper these days. I think I'm going to, long-term, have that guy for my SA stormtrooper, keep the two evolutions stormtroopers as I have them now, and try to get some Commtechs/possibly a POTJ sandtrooper. I have a handful of POTF2s for "dummy" stormtroopers already, and one POTF2 Sandtrooper.
I don't army-build, I militia-build
Also, "tacky stuff" is wonderful for keeping the thing attached to the back of his belt in such a way that it doesn't tend to fall out so much, but is still completely removeable. Tacky stuff has been one of my best friends in this hobby...