I’m going to stretch and call this mailart. So, sue me.
A bunch of “fold and seal letter-lopes”, which I just named. So, the letter is the envelope. If you search on “fold and mail stationary”, you’ll find some. I just cut up some scrapbooking paper, and fold and mailed it on my own.
Going to the folks on moreloveletters.com.
All for now.