Inspired by artist Giuseppe Penone's installation Ideas of Stone in Madison Square Park, this collaborative art project invites families to create a work called Mad. Sq. Community Tree. Participants will decorate their own "boulders" (Penone's sit perched precariously amid tree branches) out of natural and recyclable materials, which will then come together to create the new artwork. The workshop will take place rain or shine, and attendence is first-come, first-served. All ages.