hey....just wanted you to know that there are several ways to disguise the "exposed flash paper" issue.
The most effective way was shared with me by John Gustaferro. John suggested that I get a rubberstamp that has a customizable fortune on it. Then cut the flash paper into strips and present them as if they were fortunes collected from fortune cookies. You can create your own motivation for the fortune cookies, and I won't disclose my own, but there's one great start.
But here's my thing. Why do you need any other reason for the flash paper other than calling it wish paper? You place a wish on the paper for just about anything you want and when the paper burns it turns into what you wish for? I have actually started my act by producing a Barbie doll because someone always asks for a woman, a toy car because someone always wishes for one, and when it comes to be my turn, I ask for money. Perfect segway into my routine......
Try it, I think you'll like it....