Asklemmy

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My fully water cooled itx PC running arch, then I can force my hubby on them 😍

Probably a synthesizer. MEGAfm would be the coolest, but I imagine my desktop Hydrasynth would be more impressive.

Not sure what a show and tell is, I guess my laptop with tons of stickers, and boot up something that looks hackery. Besides that, my guitar perhaps?

I'd bring my Moog Theramini. Nothing like playing the air waves! It's magic science!

I'd bring some beer that I make in my garage.

Climbing gear or 3d printers.

Probably either a Ken Payne bronze called The Trail of Change or my Ibanez s521 guitar with the ocean fade paint job.

Inherited it from a family member who loved southwestern and native American culture and history they shared with me so it's some sentiment along with an interesting statue.

Most of what I own is minimal and function over form but I just think it looks awesome and is fun

My autograph collection.

My knives, because it's sort of weird even for me that I carry these knives around for work, and a weird thing becoming humdrum is the sort of thing I'd like to hear about at the show & tell.

Professional level landscaping accessories.

Folks always seem fascinated by my keyring.

My papercrafts.

You know, I think an adult show and tell wouldn't be too different to a kids one, we don't change that much in what we find cool from 7 to 70.

I'd bring some pets, I have geckos that are an all female species and reproduce only through parthenogenesis, most people find them cool.

Depends, is it a casual thing or more serious? If it's casual I'd probably just bring a Trading Card Game deck (MTG, YuGiOh, Pokémon). If it's more serious, I'd bring in some of my junk like a broken microwave magnetron, to simultaneously bring attention to the problem of short product cycles, explain a bit about how what most people see as a magic appliance functions, and show that even complex things can be broken down into simple parts.