I found these videos below fascinating. They are using a Neo magnet as an electrode for electrolysis. The bubbles stream off of the magnet in a vortex, spinning away like crazy. I want to try this experiment when I get back this weekend. I might have finally found a excuse to make a stainless steel Rodin Coil.:P I'd like to see the vortex coming off of one. Seems like this is the only way to see the real vortex on magnets, while iron filings just show flux lines.
https://www.youtube.com/watch?v=y7Xc9VHbXl8
https://www.youtube.com/watch?v=CoBNfEyOiBs
https://www.youtube.com/watch?v=_0SDO_Prp-c
https://www.youtube.com/watch?v=y7Xc9VHbXl8
https://www.youtube.com/watch?v=CoBNfEyOiBs
https://www.youtube.com/watch?v=_0SDO_Prp-c