The thought of any of those faces staring at me scares me!!! hahahahaha You can get empty cardboard bolts from JoAnns fabrics. They are already the width you need, you just have to cut them to length. Look for the ones that are all cardboard, not with the empty air space in the middle of the cardboards. The staff is delighted to give them away, as it saves them a trip to the dumpster. Using your rotary blades that are just too dull for fabrics are a great way to cut them up!