Error kitchen tea towel designs from the Netherlands by Pieke Bergmans, with the pattern composed of graphical irregularities that appear when something goes awry on a computer screen (we haven't seen something like this since the days of Photoshop 3.0). There are 6 different designs and they're subtle enough to be pleasingly decorative, while also giving a wink-wink detail to those who take a closer look.
If your partner is also inclined to enjoy the occasional or regular libation, this Cocktail Chemistry Set offered at ThinkGeek will likely appeal to his mad scientist inclinations. Because drinking anything from an Erlenmeyer Flask seems that much more interesting (reenactment of scientist turning into monster upon drinking secret formula is required at least once).
There's also this Space Invaders Cutting Board, while a tad expensive, is likely to appeal to his geekier side, while also being extremely useful for daily cooking duty. Got a good question you'd like answered? Send your queries and please include a photo or two illustrating your question, and we'll see if the Unplggd team or our readers can help answer your question.