Your may repeat some or make up your own. Cut out strips of sticky back hook velcro and attach to one side of the box. Vary the strip lengths to increase challenge. Cut out matching lengths of sticky back loop velcro. Cover the sticky side with contact paper.
Individuals attache the loop velcro to the hook velcro strips on the box.
Remove the threaded pieces which caps on juice cartons screw onto. Cut holes in the Manipulation Box to push the threaded pieces through. Attach with duct tape from inside the box. Individual screws cap off. Use different sized caps and threads for increased challenge.