|Let's say I decided to throw myself a Hitchhiker's Guide to the Galaxy–themed 42nd birthday party. What might that look like?
I celebrated my 40th during very grim conditions in early lockdown, and my 41st was also pre-vaccine so I couldn't even have a do-over. However, that means this coming one is 42, which you might guess from my username is a meaningful number to me. It's not till March (not quite six months after the book's 42nd birthday, incidentally, which was just a couple weeks ago, which is what got me thinking about this) so I've got time. I probably will not actually do this, I don't like planning parties for myself, but it merely pleases me to behave in a certain way to what appears to be a birthday. In other words, it's fun to think about. I have seen this previous question but I'm not looking to travel.
I'd want to keep things low-key, so for instance yes on having people wear their dressing gowns over their clothes, no on any sort of elaborate costuming beyond that. (Possibly deelyboppers, like a teaser.) Genuinely good recipes for terrestrial Pan-Galactic Gargle Blasters, Ol' Janx Spirit, etc. very much welcomed. What else? Electronic halma? Fill a conical tub with fine white sand and/or sugar? Find a small lake that thinks it's a gin and tonic and have guests jump in and out of it? Insult everyone at the party in alphabetical order?
Anything related to any incarnation of Hitchhiker's Guide except the 2006 movie is welcome. I will get the joke. My guests might not, but we're looking for stuff that's fun even if you don't.