I love coconut oil as a lube. It's edible- and smells and tastes great. It's slippery without being sticky. I never have to reapply it. It leaves my skin feeling soft, and my vagina doesn't get "itchy" anymore. It's also great as a massage oil. I buy unrefined organic CO. I haven't found anything I like better.
I have never had a problem using CO on silicone toys from Lelo, Tantus, Fun Factory, and Vixen Creations.