Once you have a template for the correct size of panel - the shape needs to be traced onto carboard sheets - cut out and assembled into a
hollow sphere. The accompanying pictures illustrate how I do it. Note the orientation of the cardboard.
This sphere was
for the "snowball outfit" and was subsequently covered with white quilt batting Cardboard costumes. On some costumesI install LED lighting by using a battery pack and christmas tree lights. LED lights run off almost
any power source and consume almost no battery life.