### March 25 March 25th has been a *day of invention* since it's been around, and there have been some *pretty weird products* that have come out of it. For example, on March 25, 2012, the pet-rock was invented. It was a rock sold in a box, marketed as a pet! It was *totally pointless*, but somehow it made its inventor a millionaire. Then there was the aerodynamic tennis ball, invented in 1998 on March 25th. The purpose of this invention was supposed to be to keep tennis balls from going off the court, but it just ended up making it harder to hit them. And who can forget the robotic arm invention in 2008 on March 25th? This product was supposed to make everyday tasks easier, but it just ended up being more of a novelty item than anything else. Needless to say, the inventions that came out of March 25th have been *wildly unsuccessful* for the most part--but hey, at least they provided us with some laughs.