Personalized Happy Birthday with Dog and Mouse Women's T-Shirt. Dog and Mouse are excited to wish you the happiest of birthdays! Happy Birthday with Dog and Mouse Women's T-Shirt - White, perfect for those who love this friendly duo from "Dog and Mouse" by Michelle Nelson-Schmidt. Classic ladies' styling with a feminine neckline, sleeves and fit. 5.0 oz., pre-shrunk 100% cotton. Double-needle stitching throughout