Talk about sustainable products! How cool is it that they are now using things that would normally go into the compost pile to replace at least some of the petroleum based ingredients needed to make tires? Save up your eggshells and tomato peels! Just kidding. They'll be collecting from factories and such that go through massive amounts of eggs. The best part is that tires made this way seem to perform better than the ones made the old way. This kind of rubber could also be used for lots of other things. I just thought this was interesting. If you want more info, check out Turning Food Waste into Tires.