It wasn't that long ago when they were a rare sight. Now these pale pumpkins with the seasonally evocative name can be found everywhere. At the garden center and the farmers market, they steal attention from their orange cousins. They lounge in piles next to the apples at the grocery store. As far as I know, they don't taste good. Have you ever seen a recipe for a Ghost Pumpkin Pie? But their creamy color, or lack of color, attracts us. We buy them to sit in baskets by the door or arrange in tableaux on the mantel. It's pumpkins as objets d'art.