I just listed some lovely vintage/new summer stationery in my etsy shop: Vintage Current Berry and Jam Notes. It's a complete pack of 12 vintage Current notecards and envelopes in their original packaging, from the 1970s or 1980s, featuring summer berries on the front and a recipe on the back for how to make jam from that fruit. The pack includes 3 each of 4 designs: strawberry, blueberry, currant, and blackberry.
Do you get hungry looking at these ripe summer berries? I do! They put me in mind for summer letter-writing. I'm not a cook myself, but it seems like a double gift to send a letter and a recipe all in one with these cards.
Edit: oooops. That was fast! They're sold out already.