She likes jewelry? How about a necklace decked out with resistors? (It's pretty, we promise.) A sucker for sweets? Get her chocolates shaped like Miis. Got a cuddler on your hands? Buy a blanket covered in binary code. Remember, creativity goes a long way, but a little Internet goes further.
Launch our gift guide; we won't say a word.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.