In high school, my friends & I got really stoned after our band performed one night.
We mocked up some NASA letterhead, pulled out the phone book, & proceeded to create dozens of signed & sealed official correspondence from the space agency.
Every letter read:
Dear Jerry,
You’ll never be an astronaut.
Love,
NASA
…now I kinda want to do that with this butter box trick. Just randomly select a dozen or so mailing addresses & send them one of these with no other explanation.