We recently retired an old canvas tarp. Rather than carrying it to the dumpster we cut it into manageable pieces and begun making tote bags from it.
This one is big, approximately 30x30x5. It is fully lined with fresh poplin, it has an interior and exterior pockets, leather carrying handles, a few vintage patches, a large keyring on the outside, and a removable leather tassel. It won't win a beauty peagant but it is one cool bag that will outlast a Yeti.