These jellyfish were controlled by a small arduiono using the example blinking method found on the arduino examples website.
-Slightly Sheer Fabric
about 1/4 yard
-Thread to Match the Fabric
-Quilters Batting (any kind)
-Sewing Machine (or needle to hand sew)
Step 1: Cutting
Use the pinking shears to cut all of the circles, especially the fabric to prevent fraying.
Cut the first circle from the fabric with a 5 inch diameter. The next two circles, one from fabric and the other from batting with a 4 inch diameter.
Step 2: Pinning
This is a bit tricky, fold the edges of the first circle under, like making a hem, consider this to be the new edge of the large circle. Now fold the edge of the outer circle over the smaller circles, making an enclosed sandwich. Pin the overlapping edge folds in the second step so that they will stay in place while sewing.
Now there is one more thing to pin. Take eight pieces of ribbon and place them equally along the jellyfish edges. Pin the ribbon tentacles in place without turning the circles over.