Oh I got it. Get an Alpha and buy it with a fan that has a grille on it. Attach it so that it sucks out air. Then, you get some flourescent plastic strips and attach them to the grill so that when you turn the fan on they'll wave around and look all pretty.
For added effect, put a blacklight in there for more vibrant color.
This is meant as a joke, but hey. If you really want to, be my guest. And take some pics for me while you're at it.