GeekyStamps.com is run by a Physics student at the University of Houston (Go Coogs!). I originally created the "You Shall Not Pass" stamp as a gift for my favorite high school teacher, who was a LOTR fan with an awesome sense of humor. She taught AP Calculus, so I figured she would have plenty of opportunities to use it! When I saw how much she liked it, I decided to try selling more stamps like it online. Within a few months, the stamp was being featured on sites like 9gag and This Is Why I'm Broke!
I started getting a lot of requests for a stamp that could be used for the students who actually studied (read: did not procrastinate) and earned good grades, so I created the "Super Effective" stamp for those who grew up "catching 'em all". By the way, my favorite Pokémon is Typhlosion. I named mine Buddy. :)