biner
Clipping device with many different uses in climbing.  If you pay less than five dollars for one, you might as well just hang your keys from it.  Although, if you are stupid enough to use a Home Depot "biner" to climb a route, more power to you and I'm sure it will hold you in a fall.  I have come to realize, that the people who use the "biners" that they buy at Home Depot also tend to have harnesses made of rope and duct tape.
Check out all of my biners I got from Home Depot.  What do you say to going out and leading El Capitan with me with all of these awesome biners.