I got tired of the boring mp3 default icon on my computer which was just the ♪ on a blank file icon with text, so I decided to spice things up.
And who better to represent the rockin' music on my computer (which is mostly pony music anyway) then the Mistress of Music, the Priestess of Punk, the Disc Deva herself, the something else taken form the Vinyl Scratch Tapes, DJ-Pon3!
I was able to use some freeware, FileTypesMan, that I download from here [link]
which also gave me the instructions on how to replace the icons.
I created this in Illustrator and the font used here is a Blade Runner Movie font that I also found online.