Tapper Magnetic and Lightweight Nylon Strap for Apple AirPods and AirPods Pro. Tapper AirPods Carrying Strap is designed in Sweden (compatible with All Generations).
Retailers selling 'carrying straps' for airpods, turning them into headphones - ABC7 New York
Tapper Rope Chains: Never Lose Sight of your AirPods | Siam2nite
Tapper Lamb Leather Strap Necklace for Apple AirPods and AirPods Pro (compatible with All Generations). Designed in Sweden.
This gadget is a little extra security for your precious AirPods
Tapper's '18K Gold' Airpod Chains Are Actually Affordable