my best suggestion is to try
www.ebay.com. They have a bunch on there for like $4.99 and above (plus you have to pay shipping, so keep that in mind. I tried to do searches at a bunch of different websites and I couldn't find anything. you may want to ask the people at topica.com - usecoupons list (I believe you belong to that right?) If so, maybe someone there with children will know where to look.
Good Luck,
Rhea