My aunt's got an old slightly broken laptop. She's got a new one. No one has any need for this old one anymore. It has no selling value. Etc etc etc.
I know I can put an SSD in it and run it on Linux to make it run smoothly as a laptop for emails and word processing etc, but I already have a crap old laptop for exactly that.
What sort of fun things can you do with an old laptop? I'm talking like, using it as a whole new device. Maybe using it as a 'TV Box' of sorts - getting some radio apps, and hacked streaming apps... Or loading up a bunch of PS2 games on it... or having it as the jankiest personal assistant, with timers, and calendars, and all that.
You know what I mean.
I love pointless gadgetry.
Not really any specific keyboard recommendations. That basic design of keyboard is sold by dozens of companies. I'd bet on them all coming from the same factory.