These would be really easy to make with the kids I think..
Pumpkin Oreos: http://oopsey-daisy.blogspot.com/2010/10/oreo-pumpkins.html
Chick Oreos: http://www.brownpaper--packages.com/2011/04/oreo-chicks.html
Pumpkin Oreos: http://oopsey-daisy.blogspot.com/2010/10/oreo-pumpkins.html
Chick Oreos: http://www.brownpaper--packages.com/2011/04/oreo-chicks.html