Tom - I haven't thought of spray painting it. Actually, it frightens me to think I might ruin it. However, the concept is quite interesting. I've heard of such a thing on canvas but not specifically on "black" muslin. I might consider it for my old black muslin. Any examples you can share on black muslin? It doesn't seem like the black Diamond Cloth would be a good option for painting. I agree with you, it probably wouldn't stick. As for how cheap it is, they are still for sale on ebay.
NEW BLACK 10x20 DIAMOND CLOTH BACKDROP BACKGROUND - eBay (item 360171065091 end time Jul-22-09 15:59:58 PDT)
I think it's basically Backdrop Outlet being the seller.
Sonshine_rae - What is it that makes you want to hold off? Is there a certain quality you're looking for in it?
-Jodi