Acme::Pony was originally Pony, released on the 3rd of April 2001. The story behind both it and Acme::Buffy is that a few days beforehand, Damian Conway had given a talk to London.pm, which covered, amongst other things, Acme::Bleach. At the time, Buffy The Vampire Slayer was wildly popular amongst London.pm-ers. I disremember where the pony thing came from, but flood-filling an ASCII-art pony with the word "buffy" is clearly an improvement!
in reply to The History of Acme::Bleach and Acme::EyeDrops