Something from Grand Illusions might be fitting: http://www.grand-illusions.com/acatalog/ http://www.grand-illusions.com/acatalog/ Lots of interesting / nerdy

Something from Grand Illusions might be fitting: http://www.grand-illusions.com/acatalog/ http://www.grand-illusions.com/acatalog/ Lots of interesting / nerdy gifts, including some math related: http://www.grand-illusions.com/acatalog/Maths_Toys.html http://www.grand-illusions.com/acatalog/Maths_Toys.html Feynman is great choice too. "Surely you're joking mr Feynman" is a classic.