I saw Floating Points at Neumos last year and they had the coolest thing behind them on stage. It was a gigantic sheet of glow in the dark material that got blasted with lasers drawing spirograph patterns.

I want to see them again mostly to stare at that laser wall for an hour.

https://www.youtube.com/watch?v=5ntcVE3AQsg

http://www.thecrocodile.com/event/1424459-floating-points-live-band-seattle/