I'm 15, and in the process of training my 3 month old Labrador Great Dane mix, His name is Jinx. Jinx is very playful and very large for a dog his age. His coat is black, he has a thin white stripe down his chest, and his paws are slightly white too. He loves chew toys, squeaky, noisy, round, small, big, just about any kind of toy you could think of.