Spiral wraps (where the string wraps around the hands causing the glowsticks to spiral around into the hands) are a great approximation of a tether under tension shorting.
Flowers (where the arm spins in the same direction as the glowstick creating the visual of an epicycle) could be a nice approximation of two bodies tethered where one has significantly more mass than the other.
Poi (performance art) / Glowstringinging https://en.wikipedia.org/wiki/Poi_(performance_art)
Poi spinning > Types of poi https://simple.wikipedia.org/wiki/Poi_spinning