-
Just a proper tray with a power socket solution in it would be a good start. I think weights would need to be hidden behind panelling or something (I can just imagine the weights under my sink that pull the hose thing down - they need a lot of room, so seeing it under my actual desk would be offensive. Also risk of snagging etc. Something magnetic? Maybe something on a spring - like a nerd bungee> https://www.endgamegear.com/en-gb/accessories/mouse-bungee
Obvs full neckbeard but I keep getting ads for this:
https://secretlab.co.uk/pages/magnus-pro
and didn't hate the idea of proper cable management. Not exactly like that but perhaps inspo.