This geode inspired sphericon has some jagged edges, but it still rolls in that smooth wobbly sphericon way. I've included files for both single and dual color printing. Some of the crystals have small aggressive overhangs where supports may help, but they're not necessarily required.

Pictured models printed with Fillamentum Vertigo Grey and Baby Blue Extrafill PLA. The glowing one was printed in Firefly Green PRO PLA and Vertigo Galaxy

See my video of these in action here