Yes, that's the picture used when someone commented before. And I agree it looks a lot like Tom, but it was only visible for a frame or two, is still low quality, and seems to me more like someone on the crew having a bit of fun. As to the stone diamond: Maud's tough as diamonds, can eat gems, and drill through solid rock in seconds - much like a diamond drill - makes sense to me.



As I said, it can be argued either way: That tiny glimpse from the show arguing for Tom, and the (theoretically) official toy released in only one small market on the opposite side of the planet from show headquarters.



On the bright side, the image is done in layers, so once we get a reliable and clear answer I could always change it.