3M Canada has a fun how-to on making your own duct tape wallet. I’ve seen these at stores around here and while I wouldn’t buy one I think I’ll make one just for kicks. I guess someone could go to the next level and make a laptop bag. Update: Andrew sent in a link to the duct tape bag here! He goes on to say “Basically it amounts to layering the duct tape strips to create sheets and taping those together. The trick is to let as little adhesive get through as possible, or it gets all over the place. Also, some testing would need to be done regarding weight, as a duct tape strap can only hold so much”.
Make a Duct tape wallet