The supplies you will need for this is:
-Metal tubing
-Assorted Nuts and bolts
-A pneumatic piston, push pull type, at least an 2″ stroke
-All pneumatic, fittings and enought hose to reach your air source
-4 way solonid valve
-A set of clothes to dress the hangman
-materials to form the body
-old rope to make the noose
-any lights you want to illuminate the prop
-controller of your choice, i will be using a custom DMX board and VSA