Seriously. I don't understand why she's worried...
If I were Mom, I would be more worried about the structural integrity of the puppy. Heehee.
Note: no frisbees (or puppies) were permanently damaged in the making of this post!
See? Everything is intact. (For the moment. Mom wants me to add that she has a few extra frisbees in reserve in case, um, "something happens"... apparently the frisbees have a warning on them about how they aren't designed to stand up to 'vigorous tug-of-war'
-Fiona and Abby the Hippobottomus