The above twitter thread it looks like he does that too with the ferromagnetic material. He has a long chain of posts although the first post after the original

The above twitter thread it looks like he does that too with the ferromagnetic material. He has a long chain of posts although the first post after the original video has him rotate the sample 180 degrees on top of the magnet (still points up) and then again back to the original position. He does have it flop on top of the magnet at some point and has to poke it back upwards but that happens in the original video too so meh. The way the object moves is just too similar imho. It looks like plain old ferromagnetic material of that shape does this.