Giant Pacman fancy dress outfit

Step 5 Final external strip

Next you simply need a strip to go round the outside edge. If you use the same size boxes for the harness and brackets, then you won't even need to cut them to size, they'll already BE the right size, just make it the right length, cover it with material and tape it on from the inside. (it helps if you have a small person to help with the internal taping, or four-foot-long arms, or both.)