Another option would be to keep your original and make a silicone mold and cast it. The materials to do so would cost around $50 (moldmaking supplies and resin), and you’d get around 50 or so castings out of it. The supplies are available over the Internet or your arts/crafts/hobby store.
How many do you need ? It makes sense at 1,000 or more to do a metal mold overseas. My business is promotional goods made in China and can guide you. . .