Wedding ring tattoos are a cute idea, in theory. But they tend to fall under the realm of the "tattoo curse" as in, never get the name or initials of you SO tattooed on you or it'll all fall apart.
That aside, they're also the fastest to fade/warp, generally during the healing phase, because we use our hands for everything.
Pros and cons of tattooing rings on aside, I think the thing that makes me most uncomfortable about this post, is the bit about "making" your husband wear his ring.
If he doesn't like to wear it, he doesn't like to wear it. Many people are simply uncomfortable wearing rings, that isn't a bad thing. They just don't like the way they feel, and sometimes it interferes with work. He knows whom he's married to, and I'm sure if someone asks, he'll be more than forthcoming with the truth.