Heading to WDW in a few weeks for our 11th trip. We have not been in several years (when the kids were younger). We loved collecting the smashed coins and made it a mission every trip to find ones we did not get before (kind of like character autographs).
Anyway, just checking the good ole DIS boards for new machine locations and sure enough I was not disappointed. I was curious at to whether or not they still have any gold dollar coin machines (Sacagewea) down there? I have a couple from previous trips and thought they were the coolest things.
Also, if you can, go to eBay and buy you some pre-1962 shiny pennies. They are made out of copper and keep their luster longer. Pennies made after 1962 (or 61?) are a zinc-copper mix and will tarnish after a while. I just bought a roll of shiny 1961 pennies in a plastic tube with screw on lid for less than 5.00 with shipping.
Good luck