Or how about a no-touch, motion-based interface

Consider what motivates you, what gets your blood pumping. Knowing your own motivators will help keep you driven to learn, create and innovate.

Holographic displays

Augmented Pool Table by Luis Sousa, Ricardo Alves, and J.M.F. Helping players calculate shots, just like in a video game.

Access – an interactive art installation by Marie Sester

Text Rain by Camille Utterback – http://camilleutterback.com/projects/text-rain/