Search ebay for "Scotchlite 680" for sheets of the black reflective sheets. Believe it is the same material as the tail brights at less than 1/2 price. Cut some scrap paper into the shape that fits the rear end plastic and use as a template to cut the Scotchlite 680. Even made side reflectors on the top box. I've had them on for 9 months and the still aren't starting to peel off or anything. Good stuff.