Are there any uses for mango seeds? cooking, beauty or otherwise?

in mexico some people make souvenirs, first they dry it up and make faces and diferent things with them.Are there any uses for mango seeds? cooking, beauty or otherwise?
My grandmother would dry the seed first then put half of it in water to root then she would plant it in a pot. Got beautiful plants out of them. But to get them to root is the hard part.Are there any uses for mango seeds? cooking, beauty or otherwise?
cooking its great if you make curried mango otherwise its just compost
plant them