Sharon Stone wore a 'lucky' rat's foot on her blouse as she hosted the auction at the post-Oscars Elton John Aids Foundation party on Sunday night (24Feb08). The actress picked up the charm after hearing it was an item Scotsmen wore on their wedding day. She says, "They wear it on their kilts when they get married. It's a good luck thing." Among the highlights of the fundraiser was a vintage family car Stone was selling off. The Basic Instinct star revealed she and her brother-in-law buy up classic cars to give away at charity auctions. Last year (07), she auctioned off a 1961 Lincoln at an AMFar benefit in Dubai for $400,000 (GBP200,00). On Sunday night, she was selling a vintage 1970s Corvette.