Duct tape is one of the most useful building materials known to humanity. It can do, like, SO MUCH STUFF!! It can be used to repair damaged items, can be used to make brand new objects, or can be used for some other random tasks. But, surprisingly, not duct work.
Duct tape is so versatile that fighter pilots in World War II actually patched holes in their planes with, you guessed it, duct tape! It may be the greatest thing ever made!