Change weapon material via ConVar

[hendrikbl]

I'm trying to create a weapon for TTT which allows the user to change the skin of a weapon ingame via a ConVar, something like [I]weapon_ttt_name_skin[/I] 1 or 0.
I want to create skins for every weapon in my pack and have a ULX menu where the skins can be changed clientside via mentioned ConVar.

Is it possible to do that? And if so, how would I do that?

Changing the weapon skin of the viewmodel would be enough, but if it works for worldmodel it would be even more awesome. I don't know whats server- and whats clientside though.

Thanks in advance :)