I don't know if you found it, but it's the Antlion Mod Mic. The reason I couldn't find it was because Amazon is actually out of stock right now. The official site says they should be back in stock in the next couple days.
So this isn't the most helpful, as I can't remember the name, but they are (were?) on Amazon. I had one in my cart about two weeks ago, and ended up going with another clip on mic, just cause I didn't really want to have an adhesive magnet stuck to my headphones all the time. The problem is, going back to Amazon now, I can't seem to find them.
The thing with old NES catridges is, the materials they're made out of is actually highly toxic, and has to be disposed of carefully. PM me and I'll give you an address for a place that will take care of them for you, with no extra charge. You'll need to cover shipping though.
Oh jeez, sorry, you totally said Gamegear the first time. I don't know why I read that as Gamecube...
The original Turbografx CD, by the way, is one of the oddest looking things ever, and it's enormous. The case it came in was essentially the same size as the case for a commercial slide projector. I kind of regret getting rid of mine.
@SpaceRunaway: I think you're talking about the GameGear.
And I have...two Vectrex'
Nice! That's a system I've always had a great fondness for, despite never actually having played one.
I'm squinting a little here, but I think I see the Gamecube level with this particular black box, over on the bookshelf all the way to the right. The one I'm trying to figure out is underneath the bookshelf with the Vectrex box and the Bastion flag. It looks like it could be some some of console carrying case. It caught my eye because at first glance, I thought it might have been the hard case for the Turbografx CD attachment.