You can own Timothy Leary's sensory deprivation tank! The Samadhi Tank Company delivered the tank to Tim the month before he died. I don't know how often Tim used it, but I remember seeing it in the corner of his bedroom. Tim's tank is on eBay for a Buy It Now price of $20,000 with the proceeds going to the nonprofit Multidisciplinary Association for Psychedelic Studies. In the late 1980s, I experimented with a similar tank a few times myself but stopped because it was causing me to de-evolve into a primitive man. Your mileage may vary. "Samadhi Floatation Tank Originally Owned by Timothy Leary"