A necklace is a cost-effective, quick and practical solution.
If you can afford it, you can pay a jeweler to re-size the ring for you, but you’ll be paying for labor, so it might be expensive. Getting a new ring with your spouse’s blessing might be more cost-effective, depending on what the ring is made of.
Women come in all kinds of shapes, from curvy to narrow hipped. It’s one of the many difficulties that women face when shopping for clothes that fit well.
You can search for brands that carry womens jeans lines that cater to narrow hips.
Obviously, if you’re planning to use padding, you’ll have to figure out what pants fit your padding or vice versa.