It’s always fun to to not only hear music, but see it too. It’s a pairing much like dinner and a show, as you were already enjoying something, and it improved because of an added element. There are games out there with this element to them, as well as speakers.
If you want a pleasant addition to your audial experience, then you might enjoy the Water Dancing Speakers. These are speakers that have 4 LEDs aimed at the ceiling that are accompanied by jets of water that bounce along with the beat. These will connect to your computer via USB, and are completely sealed without any need to be refilled. The color of the light will change at random, and the height of the water will be determined by the volume and pitch of the sound. This will cost about $51, and if you’d like to see it in action, look to the video below.