Priceonomics is a website that provides prices for goods and keeps up to date of current prices. It also tracks the history of those prices. To determine the prices, it searches where the product is listed and uses that information to create a price history and track the best price. Economics and practical living students could use this website for projects that they are doing in class.
This website made me think of a video I found about the "Death to Pennies." The case to remove pennies from circulation is a strong one when you think about the current state of the economy. You might be interested in watching it and sharing it with your students. Does a good job of also showing one sided propaganda.