Proud to be part of Make:'s Holiday Countdown, alongside a Floral Book Wreath and Origami Robot Paper Circuits Kit. 

It's the Maker Invent Calendar. You're #6.

Speaking of Make: and the Holidays, they also have a good Gift Ideas video from staffers. 

Most intriguing: Magnifying glasses, available cheap on Amazon. 

They are a little scary looking, but they come in handy.