Do fingers count? I lost my middle finger nail to Hoss when he was having a seizure and lost most of the skin from the top of my thumb to Lacy. She thought she was only clamping down on a tennis ball...but my thumb was on top of it too.
Dozer chewed up a brand new wheel & tire for one of my Dalton's competition 1/8" scale RC buggies. With one ruined the other three are pretty much useless and can only be bought in sets of 4. Oh well, $60 down the drain. He also chewed up the front bottom of a 2 week old Stickley Chest of drawers. I "sort-of" repaired it...man, was Donna pissed.
Kash will chew up a magazine every now and then.
Pippy dug up and chewed up the soaker hose in my rose garden.
Pretty much it. Lucky us I guess