On a random trip to the local flea market I found an old NES controller in a box for $1. I saw a tutorial ages ago on how to convert it to a belt buckle. I really just used craft foam and glue from when I was making my foam falls. I was also half asleep while making them just to prove how easy it is =P
(On a side note: Apparently they sell them for $18 on the net, insane right?)