In most areas, it is illegal to dump tires into the trash, so if you have old tires to recycle consider other options first, including this Social Recycling idea from our previous post on Liberty Tire.
For an interesting DIY project, here are 2 unique ideas you can do with old tires to “upcycle” them into their next life’s purpose. One is a primitive method of making sandals, another makes old tires into planters for your yard.
http://www.hollowtop.com/sandals.htm
http://www.wuvie.net/tireplanter.htm