Trick or Treat Exchange

if in any/all of my fandoms would be a majestic feat to behold and i'd love to see what you'll come up with!

spock.
letter.
all fic &/or art + tricks &/or treats.
extra treats welcome + old letters are fair game.

class (tv 2016)
cruising (1980)
downton abbey
outlander (tv)
rocketman (2019)
successsion (tv 2018)
westworld (tv)