Looking for a unique and memorable gift for the geeks in your life? Consider having a mathematical theorem named after them. How? By visiting the TheoryMine website and ordering a personalized theorem for your friends and family members, of course.
For only 15 GBP (approximately $24), the company will name one of their newly discovered theorems (they constantly have robot mathematicians working to find new ones) after whatever you enter in their theorem naming process. Naturally, all names are subject to approval, so there won't be any obscene or offensive theorem names coming out of the company any time soon.
[Image courtesy of Flickr user akirsa.]