One of my favourite performance concepts is to start with the basic tummy roll, transition away into some other technique, transition back, and then repeat. The audience would then be drawn in simply by varying chain length and slowly increasing technique complexity.
Here I demonstrate a bunch of techniques that combo well with the tummy roll. Practice chaining them together, and add in your own ideas!
Lightsaber: UltraSabers Phantom V2
Music: Over Time by Vibe Tracks