Nikko has gone through several tennis balls. He loves them but I always wind up dumping them because he tears the fuzz off too and I was always afraid he would choke on it. He loves anything plushy especially this canvas blue and white striped bone he has. I also realized he loves socks because he is always trying to steal mine from the hamper so I took a long mismatched one and made several knots in it. He absolutely adores it, and he will sit for hours happily chewing on it or begging me to play tug of war
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