Personalized We Are a Dog and Mouse Pair Youth T-Shirt. This duo find friendship in the most unlikely of ways in "Dog and Mouse" by Michelle Nelson-Schmidt. We Are a Dog and Mouse Pair Youth T-Shirt - Azalea, great for a pair of besties, twins, siblings, and more. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.