Reminiscence Snail Mail Club

Kaylee Rota, a painter in Massachusetts, builds this club around nostalgia and childhood whimsy. Each month's envelope contains a 5x7 print of one of her original paintings, a matching sticker, a reproduction of a vintage stamp, a small bonus and a letter explaining the thinking behind the piece, along with $10 off her shop.

Membership runs through Patreon at $10 a month in the US or $12 elsewhere, and a $15 tier adds a mini print, an extra sticker and a larger shop discount. Mail usually goes out around the 1st of the month without tracking. Her own website sells catch-up envelopes for months you missed.