Personalized Dog and Mouse Building Snowman Youth T-Shirt. Dog and Mouse work together as best friends to create something wonderful. Dog and Mouse Building Snowman Youth T-Shirt - White, for helpful friends who love "Dog and Mouse" by Michelle Nelson-Schmidt. 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.