[geeks] What desk toy or "tchotchke" says "geek" to you?

[Patrick Giagnocavo]

O Mighty List, answer my query ...

I was trying to think of "things that indicate a geek" - stuff like the
scene in Office Space where Michael Bolton smashes the printer, taped
nerdy RPG style glasses, that kind of stuff... but couldn't figure out
this:

What item that you might put on your desk means "this cubicle slave must
be a geek" to you?

A Star Wars stormtrooper bobble head?  Key chain made out of an old RAM
stick?  What?

(Please, nothing elaborate like "portrait of Einstein sticking his
tongue out - in Lego bricks" or something like that.)

The wisdom of the list ... is sought.

--Patrick