Although not as fun as a psycotropic experience, this bad boy does allow you to unplug and plug at will, without all that mucking about with an eight hour time frame.

You know what i mean, you were there.

http://www.wired.com/techbiz/media/magazine/15-06/st_insane#

http://www.mindhacks.com/blog/2007/05/virtual_insanity.html

And try it out virtually here. Second life style.
http://www.ucdmc.ucdavis.edu/ais/virtualhallucinations/