Lego: It's not really a secret that Lego building blocks are widely loved. They're perfect for any age, but a particularly fun gift for an engineering or physics nerd who lacks some brightly-colored fun. Whether you go for a Millennium Falcon, a Mindstorms NXT robot set, or a smaller kit, just be sure your beloved recipient has time for construction. If you've got a younger nerd-in-the-making, check out programs like Dean Kamen's FIRST, which encourages learning and development of science, math, and technology through hands-on activities (many of which are Lego-based). Prices vary widely [Lego; Image Source]















