How do I get ProGuards earplugs made?

The answer - it's straightforward

When you buy a ProGuard custom product it includes an option to get your ear impressions done locally to you once you have registered your purchase with ProGuard . All the details are in the box. Once the impressions have been made, slip them into the box and pre-paid bag (included in original purchase) and send them straight back to the lab for processing. You will receive your finished custom earplugs in approximately 14 days from the time the lab receives the impressions.