The Hungry Scientist Handbook: Electronic Birthday Cakes, Edible Origami and Other DIY Projects For Techies, Tinkerers and Foodies by Patrick Buckley and Lily Binns
If you're a foodie and a techie, this is the book that will allow you to combine your hobbies for maximum enjoyment. Personally, I'm not really a foodie or a techie, but I wouldn't mind eating wonton wrappers folded like cranes and then fried, a 20-sided pecan pie or a birthday cake lit up with LEDs.
See also: http://hungryscientist.com