I'm in the same boat. I got my fiance a really nice watch for our engagement and he never wears it, and I spent like $1000 on it, I'm debating if I should get him a band because gold is haram, but he says he doesn't like wearing rings or watches, so I'm kinda stuck.
I dont even know if jewlery shops even sell just "silver" bands....can't even get white gold cause its still considered "gold"