Searched the threads and can't find an answer to this one, so feel free to redirect if I just missed it.

Saw an idea on Pinterest (evil site) to organize makeup by gluing magnets on the back and sticking them on a piece of sheet metal you cover with fabric and mount to the wall. Solves my small bathroom problem, but results in my freakishly expensive makeup all having magnets hot glued to the back. Since I don't want to buy a duplicate set of makeup for traveling (refer to "freakishly expensive", above), am I going to have problems with either checked or carry-on luggage having 8-10 standard household magnets in it? All I can find on the airline pages is a restriction against neodimium magnets.