Here is a related link: http://www.manhattantimesnews.com/2010/selling-hoops-to-swinging-hips-local-teen-and-mother-make-hula-haoops-to-raise-money-for-college-tuition.html
Here is a related, (but separate) group: Inwood Boxing Academy, offering Family Hoop Classes every Sunday from 12pm to 2pm. 651 Academy Street, Manhattan.