Daryl Nicholls, 30, told Newsweek she was "pleasantly surprised" when the hat fit her newborn son, not realizing what that meant for his health.

Felton's Robin Agar-Celli ships every hat herself, paying out of her own pocket. But it's the thousands of worldwide volunteers who fuel her dream.

Each red and yellow hat is handmade and can be ordered in three different sizes. Some customers choose to have their pet’s hats custom fitted.

One paraprofessional from the Osseo-Fairchild School District is using her crochet skills to help some of their imaginations ...