We use Organic Fiji:
I am a total convert. Swear by the stuff. It's great lube, smells great, tastes great, and you can leave it lying around without people thinking it's "sex lube" haha. :)
Just don't use with latex condoms...
~g
I love Organic Fiji coconut oil:
Organic, tastes fine, smells great, looks innocuous, not sticky (which I LOATHE).
However, not LATEX condom safe. There's not a huge amount of evidence about coconut oil and latex condoms, but better to go with polyurethane.
This stuff rules:
http://www.amazon.com/Organic-Fiji-Cold-Pressed-Coconut/dp/B000URWZ8S