I used the Autumn Celebrations and Simply Charmed cartridges for my project.
You can see more cards by visiting Cooking with Cricut. While you're there, link up your own Thanksgiving card. Remember that it must include a Cricut cut. If you're sending it on to Madison, be sure to also link it up to IFTL before putting it in the mail.
You may send your cards to:
(IFTL) Funky Cards
PO Box 1203
Atascadero, CA 93423
I hope you'll find time to join in this amazing effort.