Do you guy's get roadside collection? It's this- once a year the council will pick up a couple of cubic metre's of household rubbish from each house eg fridges, tv's, etc.....
So I armed myself with a screwdriver and walked around for a couple of hours. I got a good kitty of heatsinks from pulling open old computer towers and monitors. I don't have a use for them but I grabbed some fans too.
It spoilt me for choice and gave me all sorts of ideas. Like bring on summer lol...