Scale-mail probably won't work for this-- the manner in which the scales lay is the effect you want, but since the scales on regular scale-mail are all attached by rings, you wouldn't be able to do that with feathers.
Zentai and airbrushing sounds like it might be effective!
DeviantART // Tumblr // Facebook
- Mermaid Ariel- Swimmable (Disney's The Little Mermaid): 23% (Patterning!) Colossalcon 2015
- Magic Armor Link 2.0 (LoZ: Twilight Princess): 50% (Armor Revamp) Spring 2015
- Genderbend Makoto (Free! Eternal Summer): 2% (Planning) Colossalcon 2015
- Emperor Lelouch (Code Geass): 2% (Planning) Spring 2015