This site has lots of interesting vending machines including all of the types I have discussed so far. But my favorite is the recycling one shown here. Now they need these machines in South Australia. (You will have to buy an can or bottle of drink in Australia to find out why.)
I originally came across this site from a Japanese Radio podcast, which I think comes from my favorite Japanese city, Okayama. It is couple of really cool Americans, one who speaks Spanish. But beware of the cows.