Cardboard window ornaments for kids to make. I cut slits around the edge of the circles. Some circles I cut them all the same [about a half an inch, or an inch on some of the bigger circles] [I didn't measure anything, mine aren't a certain width a part or anything. Some circles I cut a bunch of slits, others less... do what you prefer!] Then, let kids wrap. No pattern is required, though they may create one.