Remember those old metal roller slides? You know, the kind that will pinch your fingers and send you flying into the ground. Yeah, those slides. I built one. We all need a little more risks in our lives. All the playgrounds these days are basically covered in bubble wrap. Ok, so my slide is not actually metal. It's made out of wood and PVC pipes, but it'll still send you flying into the ground. It's not quite suitable for children.