Has anyone ever used any of the hands-on history kits from Hands and Hearts? I read about them in The Old Schoolhouse Magazine and checked out the website- the idea behind them sounds really great. I just hate to spend the money to order something that I'm not 100% sure about, or have never seen. So, if you've tried them, I'd love some input! Thanks! p.s. the link is www.handnhearts.com