Lindsay Lohan was so worried her appendix would be sold on eBay she kept it in her freezer. The 'Just My Luck' star was convinced her removed organ might fall into the wrong hands so she asked hospital staff to preserve it so she could take it home for safe keeping - putting it in a jar and freezing it. Now Lindsay's close friend Kimberly Stewart - the daughter of singer Rod Stewart - is trying to persuade her to sell her appendix anyway. A source told the National Enquirer magazine: "Kimberly thinks Lindsay should auction it for charity herself." Lindsay, 20, is currently being treated for alcoholism at the Wonderland Center rehab clinic. She is only allowed out of the clinic during the day to attend Alcoholics Anonymous meetings and film her latest movie 'I Know Who Killed Me'.