This is my magnetic pin dish:
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I made it from a pretty saucer from the second-hand store, and 4 strong magnets glued to the bottom. I did another later using only one magnet, and the pins do line up with the points to the middle and heads out.
I did this because I'm cheap, but it's been really nice at retreats, because nobody else has the same one, so it's easy to identify. It also gets lots of compliments, which always feels good.