Question: things to do with used tires?
Answer: Build a castle, duh. Ok, technically this is called an "earthship," and it's meant to be an environmentally friendly way to build a house. ...  Make flip-flops. ...  Start an awesome garden. ...  Build an obstacle course. ...  Make furniture. ...  Use them to get jacked. ...  Create an outdoor staircase. ...  Construct a wall or barrier.