Suggestions with 10 week old chewing.. whats okay for them to chew?

This is going to sound weird but it is what my vet recommended and it worked great! Frozen baby carrots! It is healthy, the hard carrot satisfies the need to chew and because they are frozen the cold soothes the gums. My dog is 18 months old now and though she is no longer teething she still loves her baby carrots!