Have you tried sensory deprivation? What were your experiences?

I thought I’d give some sensory deprivation a try after seeing a how-to guide on lifehacker. I’ve been using a technique where you place some ping-pong balls over your eyes while lying under a red light and listening to static on the radio. A lot of people have told me they see quite a bit of weird things, like horses in clouds and faces. I only see a splash of color here and there and that’s about it.

Have you tried it, and what did you see?