"Spartan" helmet (North Oakland)

I'm attaching a photo of the type of helmet my 14-year old is looking for. He has a presentation to do on TUESDAY (typical, just told me now), and he would like to wear what he is referring to as a "Spartan helmet." The presentation is, you guessed it, about the Spartans. If you have one to give or lend, I'd so appreciate it! Thanks, Courtenay