Ouija Box? Yes.
Matt Payne, of Paranormal Shadow Investigations, has designed a personal ghost box using a Ouija Board. While not the first to design a Ouija Board (Frank Sumption was the first), this box is beautifully constructed and is sounding good. It also allows for a thru-put of audio if one elects to bypass the radio sweep circuit in lieu of an ITC app. Speaking of apps, Matt is also a programmer of several free P.S.I. applications for ITC on the Windows platform. His apps are free to download and use actual ghost box audio for the soundbanks. Matt also has an online ghost box for public use.