Yesterday I built a plasma ball using the LightningStrike Geometry from three-stdlib by extending it for r3f and playing around with it. Bloom + Lightning Strikes => beauty.
The result:
Huge inspiration from this plasma ball example I found over here on sbedit.
The LightningStrike Geometry is so cool haha but sadly poorly documented and a bit hard to use, but the results are epic once you get those RayParameters working!