Specifically, will ferrofluid at the bottom or on the sides of a shot glass perturb the fluid above it to any significant degree? I want a character of mine who is a sort of Bill Nye/Neil DeGrasse Tyson expy to show off a party trick using ferrofluid that he calls "The Real Corona". What he does is pour ferrofluid into the bottom of a shotglass, fills it near to the brim with vodka, lights it on fire and then introduces a magnet which he uses to turn the flaming alcohol into a roiling facsimile of the Sun's surface by manipulating the ferrofluid underneath it with a magnet.
Would this work the way I imagined it? Could you do anything impressive with the flames from a flaming shotglass if you filled the bottom with ferrofluid? Please let me know if this belongs in Physics Stack Exchange, although I expect the answer isn't too complicated. I'm kinda just asking to double check that this works like I thought it might ^^'