Trying to locate Navajo children's book

I’m trying to find a book that was read to me as a child in Gallup, NM. It was kinda mythological and about a boy who invented horses, building them out of clay. I remember a grey and a blue horse from the clay.

Familiar to anyone?

I’ve searched Amazon, used book sites, and navajo sites pretty extensively, but no luck.

There are a handful of books on eBay under “Navajo” in the Childrens Books section:

Is this it by chance?

No, that’s not it, but thanks!

If you can’t find it listed on this site: Recommendations and Sources for Native Children’s Books, there’s contact information for the person who built the site, as well as links to several organizations supplying Indian children’s books, so perhaps they could help you.