What are everyone's thoughts on doing magnets for the save the date cards (so the card is a magnet)? I saw one recently on a friend's fridge, and loved it, so I'm seriously considering doing it for my wedding. I always put any save the dates I receive on my fridge anyway, and I love keepsake magnets. Another friend though said it was "presumptuous" to send a magnet because not everyone will want to put the card on the fridge. I think she's being a bit sensitive though--people who don't want a magnet can trash it or put it wherever they store their normal cards.
Thoughts? And for those of you who who did save the date magnets, where did you buy them? I saw vistaprint has great deals, but any other options? I am looking for something high quality, but not ridiculously expensive.