We use onion peels (the brown ones) to dye easter eggs and they look like this on the inside if you crack them. Red cabbage or beets would make nice purply colors. Much healthier than food coloring.
About everyone in my dad's home town has got one of these mash ups. My favorites are the ones that are motorcycles. Gas is really expensive there so it also saves on cost of carting things.
I've already felt the effects- my paycheck was withheld until the small company I work for managed to get a payment from a client. The owner also has money on the market and has been effected. Which then effects the rest of the foodchain in the office. I eventually got paid but it was scary for a few days. I think there's a reason all those depression era people started keeping their cash in their mattresses and it had nothing to do with them being bad at saving money. But I figure it will work out.
http://www.museum.state.il.us/exhibits/symbols/fossil.html