Aluminum advertising thimbles were very popular sales premiums during the 1930's and 1940's. Some of the companies that used them were Coca Cola, Buick, Watkins, Chevrolet, and scores of smaller businesses. Today they are popular with collectors.
The first thing that you should understand if figure out the benefits of this product. Then you should find a market that is in demand of the product and that when you will find any competitors and try to make your brand inferior to the competitor and price below the competitors.
One should emphasize the benifits of using an aluminum thimble as opposed to another material. Explain how aluminum is light, recycleable, and will not rust.