How much are they on Amazon? Most toys are more expensive here. And the shipping to the U.S. sucks. I'd be happy to send you some if Amazon is way overpriced. For price comparison:
Shipping to the U.S. from these sites might be expensive. Shipping to me might be free, or close to it, so I can mail them through the post office and maybe get a better deal since they're light. If Amazon is $$$$. Word of warning though, these are probably really cheaply made. I can look at the toy store across the street if the quality matters to you.
Yah that Amazon link isn't the same, I don't think. I'm seeing them range from ~$20-30 for each one. The gmarket link you posted is it, but there are other cheaper sellers. So ~$20-30 per + ~$20 for me to ship a bunch to you. Unfortunately I'm not going back to the U.S. until next summer, but if you're interested then it would be no problem to bring some back.
ETA: oh yay if your DH is coming that's great!
ETA2: if they're metal they might be good quality. Everything I've bought here has been cheap plastic that falls apart so I was assuming this was the same. But if it's a magnet thing then maybe it's metal/better? I thought we got one before but I can't find it so maybe I just made that up.