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50th Anniversary Of Mathmos Lava Lamps

POOLE, ENGLAND - SEPTEMBER 12: Finished lava lamps are shown on display at the Mathmos factory on September 12, 2013 in Poole, England. The company, based in Poole, Dorset, has been making the lava lamp since 1963, after it's British inventor Edward Craven-Walker was inspired to make it after seeing an odd looking liquid-filled egg timer in a pub. (Photo by Matt Cardy/Getty Images)