Domed Profile Sandblasted Titanium Ring by titaniumknights, Etsy (ask about buying separately)
Surf Wave Titanium Ring
Etoile Square Solitaire Gem - Solitaire Gem - Women's Rings | Titanium Rings, Titanium Wedding Bands, Diamond Engagement Rings | Product
4mm 6mm 8mm Titanium Rings for Men Women Black Dome Two Tone Polish Wedding Band (titanium, 10) SOMEN TUNGSTEN http://www.amazon.com/dp/B00MVU1HZO/ref=cm_sw_r_pi_dp_Qbwhwb1AK9HCY
This would probably be confused as a gay pride wedding band (which is fine if that's your business). I just like rainbow and tie-dye.
Tire Tread titanium rings ! Customizable with your own favorite tread pattern !
Petrified Wood and Gibeon Meteorite inlaid on a Titanium Ring - Engraving Available
Hey, I found this really awesome Etsy listing at https://www.etsy.com/listing/221462568/titanium-ring-with-double-plum-crazy
Titanium Wedding Band Set- Blue Box Elder Wood Inlay Rings. $265.00, via Etsy. Kinda like tardis rings