Like the seemingly millions of lego pieces scattered about, these little things have been taking over the house, getting under (painful) foot and generally creating daily nagging sessions for more and more.
These are crazy bones incase you didn't know, and the current obsession for my son, and many kids at his school. The good thing is that he has now moved on from collecting football cards, doctor who cards and magazines (although he still reads them), and can now actually engage in games with these little things. This helps alot in terms of social skills and he is getting better with waiting his turn, and following along in a game setting. My son has been trading them as well, and like the cards before them, he quickly developed the understanding of rare and hard to get ones. I'm still a little concerned though when he trades three for one in return, but since he always has a full bag and seems to be happy with his lot, then I guess there's no point in worrying too much about it.