Use for all the items in the Advance Material List

Has anyone found a specific use for these Advance Material List items: (other than “common materials required to build the robot “)
1’ X 1’ X 1/4” polycarbonate
10-32 X 1.75 socket head screw
1/2” OD, 3/8" ID polycarbonate rod
3/4" PVC Sch 80 pipe (or a 3/4" sch 80 pipe nipple)