This is a promo video for the $174 PYRO Fireshooter designed by Adam Wilber and sold by Ellusionist. It's a device worn like a wrist-watch (except on the bottom of the wrist) that can be concealed under a long shirt and gives the illusion that you're shooting fireballs from your hand (or that your sleeve just magically caught fire). It can hold up to four fireballs and works by heating wads of flash paper (aka nitrocellulose), that launch up to 10-feet from the barrels when ignited. Plus it's activated via a wireless controller with a range of up to 30-feet, which I have every intention of stealing and setting your pants on fire the moment you put your hands in your pockets. Remember: real wizards don't take kindly to illusionists and magicians.
Keep going for a couple shots of the device and a demo of a guy using it on the back of his arm, go to the product page HERE to see the ridiculous promo video.
Thanks to Carillon, who already took the Incinerate! plasmid from Bioshock and can shoot fireballs at any time provided he's got enough EVE.