I just scrap all of my stuff because postage in Canada is just too prohibitive for eBay (no one lives here, and even fewer people want to pay the exorbitant shipping costs here, so I have to eat the cost at which point I'm running at a loss). However, I'd think you'd have good luck marketing those as discount heat sinks, especially living on the customer-dense eastern seaboard.



The bigger ones especially can go for up to $60 fresh out of the box (I think that might be with a fan, though). Just looking now I can see there are a few auctions for sinks about that size that are upwards of 20 bucks, so even selling for $10 + S/H might be worth it.