Do you have old light bulbs that are not broken? Instead of just throwing them away, you can repurpose them as some creative things. Check out this list of Creative Light Bulb DIY Ideas and try one of them.
Mirror installation / Ron Gilad Or-- Another idea: how about a photo ( inside or outside of your store) with a mirror cut out to reflect face(s). Customers can see themselves in the color/clothing without having to try it on!