Personalized Dog and Mouse Best Friends Women's Plus Size T-Shirt. Friends are always there for you - rain or shine. Dog and Mouse Best Friends Women's Plus Size T-Shirt - Heather and Hot Pink features two scenes of this budding friendship from "Dog and Mouse" by Michelle Nelson-Schmidt. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40 combed ringspun cotton/polyester)