Toy maker Mattel is showing a new Angry Birds-branded playset at the 2011 International CES. Named “Angry Birds: Knock On Wood,” the multi-piece plastic set includes recreations of the red, yellow, and black bomb birds from the game, a variety of wooden set pieces and pigs, and a slingshot launcher. Also included are point cards for keeping track of the score. Angry Birds: Knock On Wood will launch in May and will retail for $15; a second…
