That is so funny!!
Buddy and Bandit were busy!
I know exactly how you feel. We have found things like this. So many times!
When they were puppies, shoes, glasses, pencils, dish towels. Now they just chew paper.
Our older Schnauzer that went to the Rainbow bridge, she chewed things too. We went to a party at the next door neighbours , and I left my purse on our stairs. She got into my purse and ate a package of lifesavers. Didn't eat the paper, just the candy.