Love these! My wife gifted me a Chicago CTA map for a birthday gift a few years ago and it makes great wall art.

I found an in-box rated USB-C hardwired power adapter, and ran an additional outlet above an existing one. Then used a couple screwed together brass motherboard standoffs I drilled holes into the drywall for. To my surprise just some standard superglue in the holes have held these far more securely than needed.

Looks like a great piece of “90s retro art” and gets a lot comments from guest!