My full size custom proton pack I made to complete my costume. Got it as close as I could with what I had. Plan on adding some sound effects at some point. :
GHOSTBUSTERS PROTON PACK AND GHOST TRAP Click link for Proton Pack #2 ritter99.deviantart.com/art/Gh… | Ghostbusters proton pack, Proton pack, Ghostbusters
Ghostbusters Proton Pack with Lights and Sound by Spirit Halloween PROP Costume | eBay