Goddammo!

Interesting! If you're marriage breakes up and you still wanna have a 'souvenir', then you should go to Goddammo!. They transform your wedding band into a bullet. From the website:

We have processed bullets made from wedding bands and other jewelery made of gold, silver, or platinum. Keep in mind that the bullets have no gunpowder. As of now, you have a choice of two caliber bullets: .223 and 9 mm.