This thread is absolutely, positively delightful! I mean, that's pretty fanatical, discussing the weight of wedding bands! (though, according to ultralight philosophy, perfectly understandable). Next we'll be discussing tooth fillings... trying to determine which is the lightest filling to get. And then on to trimming things like hair and fingernails and corns, washing off excess bacteria, and making sure one properly empties the plumbing before starting up the trail ("skin-in" weight). Just picture the ideal ultralight hiker... bereft of all extraneous items... a streamlined, featureless, teardrop of a creature, with no eyebrows, hair, or superfluous organs!
What about a delrin mitten hook for a wedding band? At least then it will serve double duty!