.If I could make 2 suggestions.First, would be to use the areas of the box that are open(no card holders etc) to display some thumb nail before/after pictures of your work.It gives people and idea of what their vehicle will look like if they win(little do they know,they all win).Second,add a line for their email address so you can contact them when you are running a special
More great ideas! Before and after thumb nails.
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