How what?
How make model mods for tf2
http://steamcommunity.com/sharedfiles/filedetails/?id=122800028
It's a really lengthy process but it's really easy once you get the hang of it.
One of the Emporiums accepted my Spiral Sallet texture, so they might accept your mod
How the heck do I reset it? This forgets up some weapon textures and I don't want it