Children's Face Mask by Marcela -- Handmade in Tampa, FL
Button headband for mask
Ravelry: Knitted Mask Mate pattern by Rachel Bonitz
Amazon.com: Elastic Ear Saver with Buttons- Headband with Buttons- Mask Extender- Ear Protectors from Face Masks : Handmade Products
DIY Headband with Buttons for Face Masks (Free Pattern) - A Well Purposed Woman
Ear-Saving Button Band for Surgical Face Masks - girl. Inspired.
Snails & Mushrooms Wide Button Headband Face Mask Holder, Coated with – PromoGuard™
4 Pack Headband with Buttons for Face Mask, Ear Protection Holder Elastic Headbands for Nurse, Womens Workout Button Head Wrap Spa Yoga Headbands (4PACK*A-Purple) : Amazon.ca: Beauty & Personal Care