Would any of these stunts be feasible?

My school is having a special "horse race" where freshmen, sopres, juniors, and seniors pick teams of girls from their cles to be jockeys and "horses" on which the jockeys will ride, and they are doing this contest like powder puff football, and the cles are to pick cheering teams as well. Would any of these stunts be possible for the cheering teams, human cannonball, human slingshot, flying with a jetpack, riding bulls, motorcycle stunts, etc. If none of these stunts are feasible what would be a reasonably safe, but spectacular stunt that would please the crowd but not get yourself blown up by explosives, or slammed into a wall?