I make quilts with "seek and find" on one half and "matching" on the other. On one half of the quilt i use as many different novelty fabrics that I need for the size of the quilt I want to make. I cut two squares of the exactly same object as in the first cut. One half of them go on the "seek and find" side of the quilt. On the other half of the quilt, I mix the other half of fabrics all up. That way, if the quilt is folded in half, it is just a seek and find. If the quilt is opened up, it becomes a matching game where they find the matching half on the other part of the quilt. Usually, the quilts go on the floor so they can crawl around on it to look for the matches.