World's largest spider is the Goliath Bird-Eating Tarantula, up to 1-foot in body length with 1-inch fangs. An exoskeleton the size of the one suggested in OldSchool's photo would not be possible with Earth's gravity - so it was obviously a joke, a freaky-creepy crawly one. I just thought I'd pay him out a little by drawing attention to the technique. ;-)