Maybe you started here or came from Amy Raimy's http://amyraimy.blogspot.com/ page. I hope I don't loose you, but if I do, I am probably lost also!!
I have made a 6 x 6 card for my project. It is a waterfall card. Something new to me and fun to make. I used: stamp set C1594 - Treasured Friendship Seasons and Nature. Dessert Sand Paper for the card base, the strip on front of card, and layered under the shells. The pull strip is made out of Lagoon paper. The backgroud is Seaside and the shells are stamped in Champagne Ink (#Z2174) on Colonial White Cardstock. I have used the zip strip on the top of the center piece to hold the waterfall in place when it is pulled. I also used 2 brads to hold the paper in place and a small piece of Washi Tape for the pull tab on the front of the card. The brads used are a retired item from Close To My Heart.