How does barney do the magic trick with flash paper?
He most likely uses a flash gun. It’s a small “gun” that has a small electric igniter inside. You put in some flash cotton to use as a propellant, crumple up the flash paper and insert it into the gun barrel. When the flash cotton is ignited it burns very quickly creating gasses that push the lit flash paper out of the flash gun. Thus a flying fireball is created. It’s fairly easy to hide a small flash gun in your head and create the illusion that the fireball is simply flying out of your hand. I got my flash guns, flash cotton, and flash paper at Http://www.Skylighter.
