Amazon.com: COGHLAN'S Stretch Cords : Tools & Home Improvement
Amazon.com: 2 Pack 2 mm 5/64 Inch Elastic Cord Stretch String, SourceTon Elastic Beading Cord (Black & White, 55 Yard), Great for Crafts, Hair Ties and Home Uses
HDX 36 in. Super Duty Bungee Cords (4-Pack) 4T990N - The Home Depot