Howabout a cheap Socket 7 cooler? You can probably find more than a few of these laying around for FREE. Drill a pair of 3/16" holes (I think that's right, just check the size of the ones already in the card) and attach with a pair of thin screws and matching nuts and insulating washers.
Less than $4 worth in parts at the local home depot, plus the cost (if any) of stealing someone's Skt7 cooler and fan. I just grabbed my cooler off an older rig that doesn't work anymore in my pile-o-stuff.