Sixties lava lamp
Gooey colored bubbling stuff
Mind tripping again
http://en.wikipedia.org/wiki/File:1990s_Mathmos_Astro.jpg
And here is some fun and interesting information from Wikipedia on lava lamps.
Lava Lamp
The History of Lava Lamps from About.com
History of Lava Lamps
How Lava Lamps work from Howstuffworks.com
How Liquid Motion Lamps Work
AND.... How to build your very own lava lamp!
Bubbling Lava Lamp from Steve Spangler Science
Blobs in a Bottle from Science Bob
