don't have a pattern but it looks like a basic beanie pattern with a shell edging - you can find beanie and flower patterns on many sites. Try to google it but check Crochet Pattern Central

Here is a link that might be useful: Crochet Pattern Central Hats

Checking in to see if anyone has this pattern?

You will find lots of variations of adult flapper style hats at the link I'm posting. You can play with stitch counts or use baby yarn, etc. Shouldn't be too difficult.

Here is a link that might be useful: flapper hats

This might be a close match.

Here is a link that might be useful: Headhuggers site