Jeff Geerling put together a list of a lot of 10" Hardware: Project MINI RACK

Have you considered putting your kids up for adoption?

I believe raised beds for kids have a lot of space beneath them for putting servers. Just make sure they can't pull the plugs 😜

Reddit == Evil, but if you're looking for ideas there's an entire subreddit dedicated to this. Tons of ideas, links to 3d prints, and more:

https://www.reddit.com/r/minilab/

Digitus has a lot to offer for 10" Racks. I use a lot of their Basic stuff for my Racks. AS a Server I am a fan of Mini-PC's. They are (imho) good enough for SOHO users. For storage an off the shelf NAS is small enough to fit inside the Rack. I did not find a good option yet for a TrueNAS solution (maybe one of the NAS solutions where you flash your own operating system?).

From my 10" homelab:

• Enclosing: Digitus 10" 9HE Wandgehäuse. But today I would get the 12HE version of it (my Homelab expanded beyond the available space)
• Patchfield: Digitus 10" 12 Port LSA Patchpanel Weiß. There are also keystone version if you prefer them. I did go for this because it is cheaper and I only need RJ45.
• Power connector: DIGITUS 10 Zoll Steckdosenleiste. it has 4 sockjets and a switch. I am using 2 of them.
• Shelfs for Servers, etc.: Digitus 10" Fachboden. I use them to keep my Mini-PC's and router in the Rack.
• Router: Draytek Vigor2927 it just fits on a shelf and all Ports are accessible. It is connected to a Fibre-Modem, so it just being a router is good enough for me.
• Switch: ALLNET Switch smart managed 16 Port Gigabit. Unfortunately I could not find an option including PoE (that is reasonably priced...) so I went for this managed Switch and an extra PoE Switch.
• PoE Switch: YuanLey 11 Port Gigabit PoE Switch, 8 PoE+ Port 1000 Mbit/s, 2 Gigabit Uplink, 1 SFP Port, 120W 802.3af/at. It is not directly obvious from the product page. But the 2 included Rackmount ears work for a 10" Rack.
• Mini-PC as Server: HP EliteDesk 800 G3 Desktop-Mini-PC . You can get these on the used market for cheap. Look if you can find one with an i5-8500T (KabyLake architecture). These chips have very good Transcoding qualities (Quicksync)
• NAS: I use a Synology DS-918+. It fits on a shelf isnide the Rack. but due to Space limitations (9HE instead of 12HE) it is now stacked on top of my Rack.

I don't know where you are located. So maybe you need to check if these are available to you.

Are pi’s or other single board computers options for you? My home lab runs on a handful of pi’s a dying mac mini (I am looking at replacing the thing with a better computer) and a Flint 2, running OpenWRT. I have a Rock 5 or something like that but have never been able to figure it out.

It's a bit hard to justify a 3d printer for a single project, but if you think you'll use it for other projects then that's the way I would go. I just finished putting together a bit of a Frankenstein 10" rack based around these https://www.printables.com/model/1564648-rail-with-integrated-caps-for-10-inch-rack-system https://www.printables.com/model/1173672-10-mini-rack-all-3d-printable

Biggest callout would be to make sure the printers you're looking at have a large enough bed size to print the model you land on. The original one I was planning on printing couldn't fit on my printer.

In addition to the other comments, that's also !minilab@lemmy.world, it's pretty dead though