Big Buckle Card

Splitcoast Stampers has a tutorial on how to make this card here:
http://www.splitcoaststampers.com/resources/tutorials/big_buckle_card/

It uses a SU word window punch but you could easily cut an opening using your Cricut.

 

 

card front with "buckle" closed

card open so you can see the strap

just tuck the strap into the opening