This event is in the "Family" group. Marble Roller Coasters 10:00am - 12:00pm Family This event is in the "Family" group. Nov 29 2024 Fri Marble Roller Coasters 10:00am - 12:00pm Library Branch: Westmont Public Library Room: Kwasek Meeting Room (2nd floor) Age Group: Family Event Details: Build a marble roller coaster as a family with the provided supplies. Make it tall, fast, or upside down—you decide!