Super Thin 0.5mm/0.8mm Colorful Latex Rubber Sewing Elastic Thread - China Elastic Thread and Sewing Elastic Thread price | Made-in-China.com
1.5mm Emerald Green Thin Fine Round Elastic Cord - Kalsi Cords UK
Hollosport Round 3mm Elastic Cord for Masks White, 1/8 Inch Soft Thin Elastic String Rope Band for Sewing (1/8 Inch 100M Round) : Amazon.co.uk: Home & Kitchen