Lava lights have long been the hit of the party, but new LED technology and other new designs are quickly changing that. 

One example is this futuristic flatscreen Polygon Phaser party light. The device puts on an ever-changing display of shifting polygons that's as soothing as it is mesmerizing.  

Or you can add a light show that works with your iPod or portable MP3 player. The Quadra Phaser Light Show has 4 speakers and a light panel that changes in tune with your music.

Other new devices use LEDs to put on a show. These Twin Sphere speakers connect to any iPod or portable music player. The light ring moves to the music, or you can choose the ambient sound option that responds to noises in the surrounding environment.