At Tanga, buy one men's titanium ring
and get a second
via coupon code "TWORINGS". (You can mix-and-match.) With free shipping
, that's $7.50/ring and among the lowest per-unit price we've seen for titanium rings. (We have seen individual titanium rings for as low as $5 as recently as December.) If you're going to use them as a wedding band, it's the perfect deal for bigamists or pessimists. Deal ends February 5.