Loupaper Snail Mail Club

Loupaper's snail mail club packs as much as will fit into one envelope each month: always at least two new postcards plus two bonus items, with the rest of the mix changing from edition to edition. Members help shape upcoming mail through polls posted before each mailing.

Membership runs through Patreon at $11 a month, and international members pay the same price with no extra postage. You can join or cancel at any time; the creator suggests signing up in a web browser rather than the iOS app to avoid Apple's added fee.

A fun choice for postcard collectors and Postcrossing fans who enjoy a surprise.