What a wonderful topic.
When my dog was a baby, he chewed everything, the edges of the kitchen cabinets, the little buttons off the screws, kitchen chair legs, his bed blanket (which by the way is more hole than blanket, now), but his favourite has got to be the stuffed toys which he used to sneak out of my daughter's room. He really loved those. Usually the only thing he does now, when he gets the chance, is to chew the lids off plastic juice/milk bottles. What a mess when we get home!!!!!
We love him to bits, though, and can't imagine life without our baby!