I made a tool to help the artists implement and visualise their clothes. This is something that was seriously lacking in the old version of Rust. Artists would make their models but wouldn't actually ever see them in game until they were implemented and usually made live. This is an issue because the artists need to see their models and textures in the lighting conditions of the real game, sitting next to other textures and models in the real game for scale.
I both hate and love making tools like this. I hate it because only a handful of people will use them, but I love it because you're exposing people to a bunch of cool stuff.
It turned into GMod at some point, and I can't help but fly around taking pictures.