You know what I have in my old prop box? 5 of the walkie talky Star Trek V communicators that Crest put out as a movie tie-in back in the day. We were going to use them in our movies, but by the time they released them, we never made any more. I used to have a sixth, but I converted one into a flux capicitor on a puppet-sized time machine on one of my other projects.
Would these be something that you could use? I'm planning to put them up on ebay eventually.
They look exactly like these