Lava the Original 14.5" Pink Wax with Purple Liquid Lava Lamp - Walmart.com
Make your own lava lamp!
Lava lamp - Wikipedia
Lava lamp - Wikipedia
DIY Lava Lamp - The Stem Laboratory
www.hippielight.com: The History of the "lava lamp" | The Hippiest Light of the "lava lamp". Informative Website Regarding Vintage 1960s & 1970s "lava Lamps", Grape Lamps and Johnson Industries Rain Lamps