Ehhhh, I don't know about that. Every piece of flash paper I've seen colored or not is kinda see thru. I would just use flash paper for tricks that require a smaller piece so you don't need to order flash paper by the pound to do one effect.
I would just use a substitute for the flash paper because truth is flash paper looks good with any trick you can incorporate it with. Try just doing the same with the cover of your hands or a small silk that is the same color of the deck you are going to change it with.
I really don't like tricks where you're showing the flash paper to a spectator and then setting it on fire. Tricks such as Jay Sankeys coin thru deck trick(In a flash I believe it's called). I think flash paper should go without being seen.
I myself use it while performing a ring flight as I heat up the metal with a lighter. Suddenly they see a big burst of flame and their ring gone. It doesn't cost me very much to perform this effect because it uses such little paper, and the paper goes without being seen.
