If you want to use stencils there is a fabric spray paint called simply spray that dries soft and does not fade out or peal. i got mine at www.fabricspraypaint.com you can't airbrush with it but you can stencil or spray into a cup and brush it on. you got to work fast becasue it air dries. ... View related article.
I have used a fabric spray paint on my van and some furniture. It worked great. Dries soft and did not rub off. It is called Simply Spray. They now have a special upholstery paint too. You can find it online by searching for Fabric Spray Paint. ... View related article.
