Advice on where to find this kind of PC?

Hello, I would like to inquire what PC companies are still selling PCs available for purchase with beige color cases. I know this might sound kind of silly to a degree, but I am just not a fan of modern/popular trend color motifs of PC cases, and just about every PC seller I have contacted (Dell, Gateway, HP, etc. no longer offers the option to customize a PC with a good old-fashioned beige color box. Any advice here would be appreciated!