My Gracie used to be a terror about chewing as well. Have you tried bully sticks? They really solved our chewing issue. Once she got a hold of her first bully stick she chewed it for two hours. I had to take it from her! Once she got her chewing urge satisfied she didn't need to chew on it as much but she did stop chewing things she was not supposed to........as long as her bully stick was available.
Have you tried confining her with a pee pad? Like putting her in an exercise pen with the pee pad? It takes a lot of constant watching with these little ones. If they are not attracted to the scent of the pee pad then you just have to put them on it when they start to squat to pee. It does take perfect timing.
