I found some thinkable things! Rolling Trefoil by Henry Segerman: https://www.youtube.com/watch?v=fVjcDBBrn-A Very cool wobbly rolling objects at the Museum of Mathematics in NY: https://www.youtube.com/watch?v=L_z04poueUA Rattlebacks are also on my list of cool mathematical wobblers, though less rolly: https://www.youtube.com/watch?v=11NHjiEYnI0 This video exists through support on Patreon! Special thank you to Caleb Wright, Albert Wenger, Pat Devlin, Jack Heidrick, David Perryman, Jeremy Buchanan, Chris Pierik, Wish Society, Carol Hart, Andrea Di Biagio, Charley Sheets, Jodi Vezzetti, Andrew Romaner, Michael Tiemann, and Yana Chernobilsky. Join us: https://www.patreon.com/vihart http://vihart.com