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Check these out, surface mount possibility.

http://ecx.images-amazon.com/images/I/41y9-6nwS5L.jpg

http://www.amazon.com/Magcraft-NSN0586-2-Inch-Magnets-12-Count/dp/B000SJMVMI

I play alot of golf, and noticed several club manufacturers making head covers w/magnets. They are not rare earth, but are strong enough so that when I putt or use a hybrid I a can hang the cover...

Sweet idea, it seems to me that your idea could be incorporated into a bugnet as well, the HH design among others seem to lock ya' in. But with the RE magnets a quick exit seems really easy.