Updated December 19th, 2019: They appear to no longer be open to unsolicited submissions.
WorthyKids/Ideals publishes fiction and nonfiction board books, novelty books, and picture books for children from birth through the age of eight. In September 2018 they were purchased by Hachette. The subjects they are interested in publishing are primarily inspiration/faith, relationships and values, general fiction, American patriotism, and holidays, particularly Easter and Christmas.
Most of the books they publish are Christian and most of the distribution they have is through Christian bookstores as well as big chain bookstores. They have relationships with some fairly big Christian brands including Veggie Tales.
They only accept submissions through the mail. They expect a brief cover letter and a complete manuscript. Board book manuscripts should be no longer than 250 words. Picture book manuscripts should not be longer than 800 words in length. They are also seeking submissions from artists and illustrators.
To read their full submission guidelines go here. You can see their home page here.