Yup, DS recieved it as a gift for his second birthday. It was from a close friend of ours. Not sure if they were just trying to be mean or if they had recieved it as a gift and wanted to get rid of it...
I'd venture to guess that it's is the most re-gifted toy in the world. No one ever wants it, stores won't take things back without receipts, so it just gets passed around.
Moon Sand is kind of like the "Holiday Fruit Cake" of kids birthday parties.