Do you need a thingammijig to connect your whassaname to the doo-dah?
You are in contact with the creator of the Telly-Addicts "Hoofah-Doofah" here you know!
Historical note: That was a multi-tone signalling remote handset using an LF induction-loop. I bet you thought there was nothing in the box didn't you?
Seriously though, custom building of small electronic gizmos is something I can quote for. Try me.