3d glasses having an rfid tag are rented to theater or other venue operators . the glasses are shipped to a venue for distribution to patrons and collected from patrons in the trays . inventory and other measures are implemented by rfid scanning while the glasses are in the trays . data gathered from rfid scanning and inspections allows the rental company to properly allocate rental costs to various venues based on shrinkage which includes , for example , extraordinary wear of the glasses , breakage or theft , which is attributable and traceable to the specific venues . the theater or venue may also independently scan the trays upon delivery and pick - up to maintain their own records . the invention includes 3d glasses with rfid , a washing rack , and rental systems .