A simple 3D printed case to hold earplugs (https://amzn.to/2NMcVUU). They magnetically close just like AirPods cases.
Assembly instructions: https://www.instructables.com/id/EarPods-Earplug-Case/
Parts:
Unassociated tags: earplug case, hinge case, magnetic case, plug case
Category: 3D Printing