I THINK they offer free shipping through their website. They also run a daily deal site w/ free shipping. I have only purchased through their ebay once, and I got free shipping on that item. I bought three of the silicone tray liners from their store, and got free shipping on those.
The silicone bakeware is fantastic in the oven (up to like 500 degrees) and in the microwave. I have the cupcake liners, and they are the ONLY thing I use for popovers so they do not adhere to the cup. They are a little flimsier than glass, though, so if you're using it for an actual cake, I suggest putting the silicone pan into a glass pie pan. (I put the cupcake liners on a baking sheet.) But NOTHING sticks to these suckers!