I think you're on to something with that mid air fire trick dunk Isaac. All he'd have to do is douse the ball in that highly flamable stuff firebreathers use (when no one's watching), get a mouthful of said liquid (cleverly taken from a pre-arranged guzzler) and approach the hoop with a lighter tucked into the shorts. Moments before take off he can whip the lighter out and at the point of take off spray a mouthful of liquid towards the ball with the flame of the lighter between his mouth and the ball. The rest writes itself, there will be pandamonium in the crowd, people will be going crazy, the quality of the dunk is immaterial. In fact, I don't think people will care if it doesn't even go through the hoop.
I'm pretty sure that stuff burns at a low heat so there's not a massive risk of permanent scarring or disfiguration, 1st degree burns at the worst. A small price to pay to go down in the pages of history as the most outrageous and audatious dunk ever attempted.