Yay.  We think our binary clocks are a great gift idea too.   :) 
And we now have binary light switch covers (in case you needed those).    

I love Coding4Fun.  They have a lot of great projects.  Here are a few holiday themed projects.

Lots of great gift ideas.
View their list here: Coding4Fun 2005 Holiday Gift Guide

I'm going to get the laptop mouse listed tomorrow!