Star power: Maybe you’d like a pair of Elton John’s sunglasses? Or a ride in an airplane piloted by Nirvana bassist Krist Novoselic? Or a pair of Bette Midler’s old shoes? Here’s how to find them: People for the American Way has a mountain of celebrity memorabilia from the worlds of TV, music, movies and sports that it will auction on eBay. The fund-raiser doesn’t start until Sunday, but you can preview the stuff. Go to (Bette’s Loafers) and start planning your bid strategy.