The ArcadeDock Laptop Dock is an awesome mod. It’s a half-height arcade machine, with retro art, the necessary joystick and large buttons and a secret place for a touchpad-equipped keyboard. Basically it is designed to hold an IdeaPad Y560, and when connected via USB, it functions just like any arcade cabinet.
Pretty awesome. Though it looks pretty uncomfortable to play. Still, it’s worth any back pain you might endure to play a lenovo Ideapad through a Street Fighter 4 emblazoned arcade cabinet.