Some bowlers rely on extra practice or advice from peers when trying to enhance their game. Others choose unconventional methods. This self-hypnosis cassette tape promised bowlers would improve their scores by up to 20 pins after one week of listening. It’s unclear how many people tried this technique or how successful it was, but it was probably a lot less taxing than additional hours at the alley!
( C ) Copyright 2018 IBMHOF (photo by Heritage Werks)