Personalized That's right! You're my best friend! Women's T-Shirt. Show off your bestie with That's right! You're my best friend! Women's T-Shirt - Heather, featuring Dog and Mouse from the children's book "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