Hello, modders and skin fanatics alike!
After a very long time working on it, I'm happy to announce a brand new mod API that allows one to create their very own skins for their modded characters and items! You can find the mod on the Steam Workshop here: http://steamcommunity.com/sharedfiles/filedetails/?id=835602689
This mod is only to be used to create skins for modded characters/items. Klei strongly forbids the use of modders creating skins for any official character/item