I was browsing Pinterest the other night and saw some vintage examples of letter art–decorated envelopes where the address is part of the design. That pulled up some modern examples and then I found The Graceful Envelope contest, which “was created in 1995 by the Smithsonian Institution’s National Postal Museum, which administered it until delegating responsibility to the Washington Calligraphers Guild in 2001.”
This is literally everything I loved as a teen/want to dabble in again: sending things in the mail, fancy lettering (and a CALLIGRAPHERS GUILD!), cool stamps, and little paintings. You can see the current winners here and past winners here and you’d better believe I looked at them all.