I've shipped tons of things in and out of Hawaii. Flat rate boxes are best if you can fit your stuff in it. FedEx Ground going to Hawaii is also about the best for things that won't fit into a FRB. Whats interesting is FedEx ground coming out of Hawaii is more expensive going to Hawaii even if it's the same package going to the same addresses (in the opposite direction of course). You can even ship non-op cars to and from Hawaii without having to pay the big bucks for a container. Pasha only charges an extra $75 if the car is a non-op, just have to have a working brake and hand/parking brakes count.