That's interesting about the pieces in the wood bag!
The weirdest thing that my cats have all loved, is baling twine. When they switched from baling wire to that plasticky twine, the cats loved it, and they will sometimes, when in the mood, spend long periods of time licking it. Even when a piece is years old. We have never figured out the mystery of why they want to lick it...and lick it, and lick it!
Love All Life, Thank You For Posting! :)