@MrMahgoo Those are'nt one handed rolls, Look at his hands at the end of the rolls you can see him reach to his left after that magazine thing and hit the triggered pad to stop the "ONE HANDED ROLLS" (funny joke) they are pre-recorded so when he hits the pad they start...hahaha it's totally funny...
Wow good job your version sounds exactly like "Cas Haley's" when he was on "Americas got talent" especially your melody..