Hey Romi - check these out - found the references in the mod section of the GD forum. In case the links don’t work the titles are " Cosmetic Wings - Ancient spirit wings
and Sexy outfit MOD?
and [MOD] Hairstylist - a barber in town!
I’m not sure how these were created but since they can be well then there is hope for both Balrog’s and Dragons yet 
Might be worth dropping the original author(s) a note and ask what tools they used. Just trying to make the dream real, one step at a time …and if you do install 'em let us know how it goes