Tired of keep cabling up and swapping over consoles to play different games I modified a cheapie bookcase to house some of my consoles on the end of my desk (lack of space in my tiny spare room!) Fairly pleased with the result below.
Was a lot of cabling, but now any console can be switched on, directed to any monitor and recorded/streamed via an Elgato HD60. Every console is cabled up to support its highest possible quality video output; RGB scart, component or HDMI.
From top to bottom:
Dreamcast & PS2 slim
N64 (RGB modded NUS-001fra version) & Wiis
SNES & Platinum gamecube
NES
Saturn model 2 (slightly dodgy video output on this, think I might need a new one

)
Xbox One
PS4
Wii U (under monitor)
Mega CD / Megadrive / 32x
Master system converter in desk leg
PS3, Xbox 360 in desk leg
Original Xbox in other desk leg
Ran out of space there so I left PS1 & master system etc boxed up as they can be played on the megadrive (with converter) and PS2.