The leading toymaker, whose brands also include Fisher-Price, Hot Wheels, Thomas & Friends and American Girl, saw its overall net income drop by 24%, hit by the slide in Barbie sales as well as a $14 million write-down on its Polly Pocket line. Overall sales managed a 1% gain year-over-year, at $1.17 billion. Mattel shares sank 6.8% in the trading session following the report, closing at $43.16.