have a look here for super strong neodynium magnets
http://www.first4magnets.com/?gclid=CILBr8mHorQCFSHHtAod-T4A7AI recently mended a leaky fan oven door with a couple of strong magnets, it only occurred to me the other day that there might me a morgan application for such technology.
I havent yet investigated but this place might have whats required: