Design Squad Nation's Judy and Adam show you how to make a zip line for a Ping-Pong ball. Design Squad Nation hosts Judy and Adam show you how to make a zip line for a Ping-Pong ball in the Zip Line ...

IDAHO SPRINGS, Colo. — The state agency that regulates ziplines and other adventure attractions does not maintain records of problems found during annual inspections, 9NEWS Investigates has learned.