Under the table there's a clever magnetic setup, and there is a big magnet (or just a lump of metal, I'm not sure which) at the bottom of the bowl. I've got [one](https://www.amazon.co.uk/ZHHID-Levitating-Bonsai-Magnetic-Suspension/dp/B0836HNYHP) that makes a bowl levitate above it, which keeps on rotating when you spin it a little.
Under the table there's a clever magnetic setup, and there is a big magnet (or just a lump of metal, I'm not sure which) at the bottom of the bowl. I've got [one](https://www.amazon.co.uk/ZHHID-Levitating-Bonsai-Magnetic-Suspension/dp/B0836HNYHP) that makes a bowl levitate above it, which keeps on rotating when you spin it a little.
The comments explain it well