We made some fabulous cards at my August workshops.
The first card uses the ZigZag technique with striped background papers:
The second card was a 3D card. This picture doesn't do it justice but you get the idea. The back of the card has a scene attached. Both ends have "accordians." The top of the accordian has the frame attached. In the middle is a small strip of cardstock with trees attached so you get depth.
More cards will be posted tomorrow.