Hey teaforleelee; are you referring to the custom blends? We do not offer samples of the custom blends, because we hand mix/put together the blend when we get the orders. There are no large batches of any of the custom blends in the warehouse (though we should be making some for the Mexican Chocolate Skywarrior has created, cos that is selling like hotcakes!), not unlike our regular flavors and herbal blends.
It's also somewhat harder and not very economical to mix the teas for several sample tins as opposed to one 4oz tin of the tea. I look at the signature blends made by our customers as something to purchase in that large size; I've seen some with personalized pictures, that customers are purchasing for gifts for friends and fellow tea lovers.
So, when it comes to the custom blends, you can look at it as a stab in the dark, but if you get a blend you don't like, then you can get creative and add a little to it to customize it to make it your own.