Selfhosted

Shrek - OPNSense, because it (firewall) guards my swamp.

Dragon - NAS, because of a dragons hoard.

Donkey - Proxmox, I use this for a few VMs and docker containers. It stores my DNS, donkey was annoying, and there is nothing more annoying than your DNS going down.

Fiona - Backup NAS - less big, only stores important backups.

I give them weird syntax names so if someone was to hack in the names wouldn't give away what they are immediately. I don't reuse numbers so that if I rebuild something it gets a new num.

Location-Ordinal-NetworkNum-Counter Eg AU-01-01-01

Containers are just their application name except where I have more than 1 then its Application01,02,etc.

Pretty much same as you: If it works for NASA or it's a heavenly body, it works for me. Main PC is called SATURN V (SATURN for most things). Laptop is called HYPERION. Currently saving up to replace SATURN with ARTEMIS. Might throw in a GAIA NAS/virtualization server at some point, if cash flow allows for it. I'm not as picky about my family's devices that I've set up, though... They'll keep their randomly generated names, mostly out of laziness.

I've been doing birds. So far I just have Cardinal, Bluebird, and Sparrow

Russian spacecraft and rockets.

Currently I have N1 as my home server and my desktop is Energia. I've previously had Proton and Soyuz etc.

I use the names of chemical elements, but with two twists: I assign them in the order in which they appear in the song "The Elements" by Tom Lehrer, and I use the German names. So I have (or had), among others, Wasserstoff, Sauerstoff, Stickstoff, etc ...

WoW places. Since some of my servers died, I'm currently only sitting on dark portal (Firewall), and the Stranglethorn Valley server with Gurubashi Arena (Plex), Booty Bay (you can imagine) and wild shore (shared file system VM)

I name devices after Greek Gods / Goddesses. My main server is called Olympus.

On my labs cluster they are named after famous physicists

My main machine is Suckup (Second Universal Cybernetic-Kinetic Ultra-Micro Programmer), my laptop is Tuckup (Third Universal etc), my phone is Keitaichan (keitai being Japanese for mobile phone), my tablet is Tabbuchan (from Japanese taburetto for tablet), my NAS is Shinochan (from shinorojii, Japanese for Synology), because I am absolutely insufferable and unimaginative and I crack myself up.

All of my servers are named after characters from the Dragon Ball universe.

Don't recommend doing an 'obscured' naming scheme,, hate having to refer to a spreadsheet to know what server does what because I tend to spin up a lot of random stuff. Highly recommend using functional names that are easy for your brain to remember, like an acronym for whatever service or types of services it's running.

Just stupid puns that come to mind when I set it up. Synology NAS is "Rainy" since the box had "be your own cloud" written on it. M1 MacBook is "Apple Pie" because being ARM it's just a big Raspberry Pi right? Etc

I use Roman authors, with the machine/VM's purpose (often vaguely) linked to what the author was known for. For example, my NAS is called Tacitus (a historian), while my game server is called Plautus (a playwright). A couple services predate my schema (like my Pihole and OPNSense box) and are named descriptively.

cakes then a different type of cake. ie cakesFlan

Names of Greek letters.

Alpha, Beta, Delta, Epsilon...

US states. If I have more than 50 different host names to manage, I should re-evaluate my hobbies. And then lazily move on to US state capitals.

Star types, stellar objects, planet names, etc...

Scientists/inventors for me - bonus points if I can find one related to the machine's purpose (Kodi machine named after a contributor to the TV for example)

Started with Evangelion Magi naming and now I just use the pet name generator in Terraform.

Random_pet

Fun fact: When AOL was still operating in Germany, internal servers in their network were named after characters / things from Asterix comics, like Asterix, Obelix, Idefix, Miraculix and even Hinkelstein (menhir). When Telecom Italia bought them up they unfortunately got rid of all these and replaced them with standard corpo server names. Source: I worked there.

Games from my childhood. Moon Patrol, Galaga, Zaxxon, Twin Bee, Xevious, Gradius, etc.

Yup. I'm that old.

I used to invent "funny" names, but at some point it became a chore and I also found I'm forgetting some names or spelling when I need it.

Call me boring, but doing enterprise system admin jobs for years I recently started to adopt functional naming convention.

This is what I have now: [location code][OS code][type vm/ct][environment code][workload][index]

So the first production DB linux VM in my primary Los Angeles location will be named LA1LVMPDB1 And my second test Nextcloud container hosted in the same location will be named LA2LCTTNC2.

I still have to invent short names for workload, which is harder for specialized containers, but overall this makes it all more manageable.

I used to work in the GRASP lab at Penn, and my predecessor there was John Bradley of xv fame. He had started naming all the machines after fish.

When I got there I continued the practice, naming some tiny computers being used for mini robots after different types of goldfish.

In my current job, years ago, I managed a group of Linux servers, and I named them after Demons (Lucifer, Asmodeus, Azrael, Beelzebub, etc.).

At this point, there is a specific naming convention in use where I'm at, and the name is limited to identifying organization, application, and server type.

I don't have a very consistent naming theme. I've used various names related to music, science, and art. I have a decomissioned machine named "numbers" for example.

However, I would like to point out we have plenty more than 8 celestial bodies of interest in the solar system if you include Eris, Ceres, Pluto, Makemake, the moons of Jupiter, and more. It might not be indefinitely extendable, but may help in the short term.

Domestic no Kanojo is an anime that people describe as rubbish. Maybe it is, depending on where you're coming from, but I was invested in it, and so decided to honour the anime/manga by naming my servers "Hina Tachibana", "Natsuo Fujii", "Rui Tachibana" and "Miu Ashihara".

Bird species, most of the time. I look for a bird that seems to have some connection with the intended purpose of the box, then use that. e.g. my work computer's hostname is cormorant.

You gotta have the concepts the machines are named after change as the nature of the machine changes (and bonus points if the nature of the concept is analogous to the nature of the machine). E.g. if my main machines were planets, then when I added servers they would be named after space hardware (hubble, webb, iss, etc). Raspberry Pis can be ceres, eros, vesta, juno, etc. It actually genuinely helps by distributing around within your brain the placement of which machine corresponds to which concept or which name, and also it frees up more names when you start having tons of machines in different categories.

I've had tons of naming schemes over the years (chemical elements and classic video games were two that I used for different banks of machines) and I've done that system with good results.

Lowercaps Dwarfplanets. chaos, orcus, ixion, ceres, haumea, makemake, etc. DHCP/router is named sol

My Raspberry Pi's are named after planets and large bodies on the Solar system.

My servers are named after The Expanse characters and ships.

VM's and CT's after their usage with a tag in Proxmox for the OS used.

I’ve used Star Trek names before, but in general I’ve just started naming them what they’re used for (ex. Dev-Mint, StorageCore)

I've never thought about this, but now that you bring it to my attention I think I'd go with a combination of mineral-flower, so for example "tourmaline-calendula".
Also to automate that, I saw that there is this neat website perchance.org that you can use to construct random word generators, I'm wondering if there's an open source alternative though, that would be great

At my first job/internship it was fish names (they were dev/qa servers so wiped almost daily): Crappie, Bluegill, Walleye, Marlin, etc.

Current job is medical so it's all professional (i.e gr01sec02, gr02sccm01)

At home I've got a couple of naming schemes for different device types.:

Phones: i-telleuwat(last 4 of the number)
PCs and Media centers: playon(last octet of the IP)
Servers:gimme(service thats hosted)

Ship names from the expanse.

My PC is the Rocinante My home server was previously the Behemoth, put it in a smaller case so now it’s Medina.

I do Reboot characters, since I'm old! Kind of running low now but I call each of my phones Glitch and it makes me very happy.

I have a weird one: years ago I called one machine "nudl" (like using one's noodle but with a weird spelling). Now I've got a few different nudls, a strudl, a dudl, and I think there's a pudl in the closet somewhere.

Star Trek ships at home. And Game of Thrones characters at work.

All of my personal machines are Autobots.

At work we use space probes (Voyager, Pioneer, New Horizons, etc). We're a small satellite communications company.

We did reindeer; Dasher, Dancer, Vixen, etc.

After starting with X-Men characters and quickly running out I moved to Star Wars planets as there are a lot more of them