U.S. ToyU. S. US Top Hat

would this fit my toddler - looking at a cute christmas picture with a top hat.

this is for my ingant grandson's halloween costume. His head circumference measure is 9". Is this hat going to fit him?

I am planning on using this as a snowman's hat for a cake. The cake will be 6 inches, would this work?

Are the hats shipped with support so they don't get crushed in transit? I've had major issues with other sellers.