Unusual wedding bands

I came across this TimeOut slideshow in the course of legitimate working at work, actually. A surprisingly good roundup of cool rings. My favorites are:

Interlock/Entwined from Camille Hempel ($535, $1,140)

Gold Swallowtail from Sundance ($698)

(more band-y but still cool)

Similar to the Entwine/Interlock are these from beyondtherockz at Etsy, both $70 in sterling silver, but I've asked and you can upgrade to 18k gold for around $400 depending on the metal market at the time.

Embraced

(I figure this one as a 'for her')

Endless

(and thus, 'for him')

I like the symbolism, not as much necessarily the knot or being tied but how there's no end to the pieces, it's a continuous loop.