Personalized Mouse Toddler Sweatshirt. A great finder, a great helper, and a great friend. Mouse Toddler Sweatshirt - Heather from "Dog and Mouse" by Michelle Nelson-Schmidt wants to help, not because she has to, but because she wants to. Keep your little one cozy and stylish with this soft and durable toddler sweatshirt. Designed for comfort and ease of movement, it features a classic fit with ribbed cuffs and hem for added warmth. Perfect for everyday wear, playtime, or chilly outings, this sweatshirt is made to withstand the adventures of an active toddler