Every year at this time, I get started trying to pull together the various options for physics-related gifts for our readers. These can range from some of the great books out this year, like Sean Carroll's The Particle at the End of the Universe (about the search for the Higgs boson), to DVDs like the physics-themed Season 5 The Big Bang Theory. And then there is my perennial favorite: Roger Highfield's The Physics of Christmas
But this year, I'd like to ask you - our readers - for your suggestions to add to the list of great physics-related gifts. They can be educational or goofy, but should have a strong scientific theme. Just leave a comment with your suggestion. If it's on-topic, you can even include a link. (Non-science-related spam will be removed, of course!)
So what is your idea to add to our physics gift list?