Dip a wire frame into a bubble mix and you have a bubble forming a minimal surface spanning the wire frame. These bubble surfaces have been used to demonstrate math and physics concepts like topological surfaces, Steiner trees and of course minimal surfaces.
I'd like to do a demonstration on making Seifert surfaces using wireframe knots. How can I solidify such a surface? Ideally I'd like students to dip a wireframe knot in, take it out with the bubble surface, and then do something to the surface to solidify it. This will allow students to rotate it around to consolidate their spatial understanding of the surface, and refer back to it constantly.
Can it be frozen? I've looked up freezing bubbles with dry ice but that causes the bubbles to burst. How about liquid nitrogen?
Or could there be some special bubble mix that allows me to do this kind of thing?