That's one way to get back at your step-monster. Designer Stella McCartney was accused last week by her soon-to-be-ex-stepmother, Heather Mills, of doing "evil, evil things. She scraped my face out of a photo." But Stella, who's just created a line of jewelry, might be getting the last laugh. She designed one piece that seems like a pointed dig at Heather - a silver, one-leg necklace. The pendant goes for $500 and is already creating buzz in fashion circles. "A lot of people thought it was really edgy, while others secretly thought it was out of order," an insider told the Daily Mirror. "It's such an obvious dig. It will cause a stir when it goes on sale."