Paper Toy Guns How To I Ship A Die-cast Toy Gun?

How to I ship a die-cast toy gun? - paper toy guns

I sold a pistol die-cast toys. One of them is made of metal and used paper roll caps. How can I send? Can I wrap it and send it via USPS than any other ship? I do not want any problems or do I think it's a real weapon. It is simply a non-shooting toy.