Of course, there's this!
We also like this:
Yes, it's a basic collage, but much neater because we eliminated the need for glue and used the sticky side of contact paper...just taped the paper sticky side out to the easel, the kids cut and stuck away for hours! Of course, had we clear contact paper, we'd have covered our collages and used them for placemats...but we didn't.
It's also fun to pick a theme like body parts, shapes, etc. This one is great for the grocery ads:
And, since we're on the subject of cutting: here is one of our favorite books on the topic!