Melbourne Zoo April 2013
Possibly the best non-animal interactive learning eperience ever in a zoo! Zoopermarket is within the Orang-Utan viewing hut, and allows you to scan common products to see if they contain certified Palm Oil or not. It tells you if the company uses sustainable oil, is going to by 2015, or isn't at all, and also allows you to send a message to the government (I think) saying that you think Palm Oil should be labelled.