4) Laserium

Rock history: Laserium shows turn planetariums - ostensibly places of learning - into dens of sordid hedonism. The second the smoke machines kick on, hippies fearlessly light up and zone out. It’s the next best thing to an actual concert.

How it works: If you missed the live performance of The Wall in Berlin, the USB Laserium will make up for it by filling your living room with lasers and smoke for that epic Floyd feeling.

ESRB: F (Face-melting)