Your old flip-flops and used writing pens have a shot at reincarnation. TerraCycle Inc. and Old Navy are partnering to collect used flip-flops and recycle them into four public playgrounds around the country. According to a news release from TerraCycle, this is the first time a nationwide retailer has initiated a large-scale effort to collect and recycle flip-flops. Residents can take flip-flops to the Shawnee Old Navy, 15310 Shawnee Mission Parkway, from Friday, April 22, through May 21.