This looks pretty hilarious, but if you bought one of the Core i3-9100F processors for ~$100 and want a stupidly cheap motherboard for it, here you go.
Yes, it's called a "Mining" motherboard. No, you don't have to mine with it. It has a meme-worthy 17 PCIe 2.0 x1 slots, but it also has everything you'd need for a normal gaming PC: a PCIe 3.0 x16 slot, 2 DIMM slots, a decent handful of SATA and USB connections, and a surprisingly good networking solution too.
I am making an informed guess that you don't have to actually plug in all the extra power cables to get a boot out of this, if all you're installing is a single GPU (rather than more than a dozen via riser cables) but please don't blame me if you buy this and I'm wrong!
Anyhoo, it's less than $50, so just buy a case with solid side panel and forget all about it ;-)
Looking forward to the comment section…
Sad it doesn't have an M.2 slot, nonetheless it's an amazing deal.