Halloween // Accessories for IRS Agent Costume

Hi everyone. My 12 year old wants to go as the scariest costume ever - an IRS agent handing out audits. He will wear a suit in which 3 fake $100 bills will be sticking out of his suit pocket. I got him a real Dept. Of Treasury gold pin to pin on his suit as well. He’ll carry a laminated name badge I’m getting from Etsy which identifies him as a (fake) agent. For trick-or-treating, he will carry his candy in a soft style briefcase.

What other accessories can/should he have? Should any off the above be taken away? I’m not so sure about the $100 bills sticking out of his pocket.

I’m at a loss with planning this costume. Any help is greatly appreciated. Thank you!