Hi there. Selling a proton pack I made for halloween last year. It took me a full two days with no sleep to finish. Made of metal, styrofoam, and plastic. Doesn't have labels, but will add them before shipping. Only thing that needs changing is the proton gun if you wish, and an alice frame as backpack straps are glued on due to rushing to get it done in time. Very easy to change. Pieces are on a cut out sheet of thick plexi glass. No sound but pack does light up (Christmas lights) with 2AA batteries in switch box. Asking $500 obo.