WOW! That is awesome.
I know that part that would set on the left side of the head, is probably just part of whatever found headset they used, but I can't escape the thought that it looks like the par of the stem on glasses that goes over the ears. And I've seen some, from time, to time, at the dolor store that have that part as a separate part of the stem. (you know. like a piece of plastic. that would be over the stem, on a pair of say "wire rims.")
In other works I would really, really, like to find the actual headset used on the show. But, if we end up not finding it. I'm think that Bico part, a ear piece from a pair of "wire rims", a head set, with the left ear piece removed, and mice arm off of an old PC mice, or something like that. And you might have something ok looking.
Oh, and I like how (it looks like) they Used the whole Bico part, including ,the part the goes into the mice are, so that it can be moved back, and forth. Instead of just cutting it down, and gluing it in there. A little thing but I nice touch.
I got my bico the other day, and I love it. I wish I had bout two, so I could have one to where just for every day. (Kind of as inside joke.
) It's very well made. Though there is a logo stamped into the back side of it, that i wasn't expecting. I may post some pics later this weekend.