My dog only chewed two things as a puppy. One, he chewed up a bamboo knitting needle of mine. The second was the cord to my Juki's foot pedal-- $300 to replace because of the thread cutter feature in the foot control. I sent it off to have just the cord part changed out, and it came back electrical taped! I could have done that... It was murder being without that machine for a couple of weeks because of it.
Puppies will be puppies! They are so worth it, tho. Now Marty is the perfect dog. We can leave him home alone in the house all day and he just naps... no accidents, no destruction. Good as gold.