They were simple to make and cost very little to make. This was actually my first time working my jigsaw so there was a learning curve and I really had to sand the corners to get a smooth finish. But I started out with 1/4" plywood. I wanted a larger cloud shape to be approximately 22" long and the smaller cloud (for the front) to be 16" long. To get good circles I would a Pyrex mixing bowl as a guide.