so this is my instructable on how i went about doing this and i must say it was pretty easy and cheap, but before going any further i must say DO NOT DESTROY ANY WORKING OFFICIAL OR OLD THIRD PARTY CONTROLLER, ONLY USE DEAD CONTROLLERS OR NEWER REPRODUCTIONS/ BOOTLEGS. the controller i used was both broken and a knock off so i had no problems ripping into it.
NOW FEATURED ON HACK A DAY http://hackaday.com/2011/02/14/recordable-snes-belt-buckle/
Step 1: Gather your materials
you'll need the following
1 nonworking snes controller or working/dead reproduction controller
some sort of sound playback unit, i grabbed mine from a balloon that let you record a message but you can use w/e you think will fit
1 belt buckle thats is slightly smaller than the controller and flat, if it's slightly bigger make sure you can cut or grind it to size.
headphone port (optional if you want to record line in instead of through the microphone)