That's awesome! They actrually have a "Duck Tape Festival" every year in Lorain County, OH, where the company started- quite fun! It's amazing the things people come up with.
All I know is that the military duct tape is way stronger than what you can buy at the store. It's olive green (of course) and I swear you could tape a person to the ceiling with that stuff.
I can say from personal experience that normal silver duct tape is perfectly capable of sticking someone to the ceiling. Can't even say how many people have woken up that way after a hard night out
Duct, duck, whatever, it's the best tool ever made. You could proubly make a house out of it. Wait... house... tape... duck... SOMEBODY SEND THAT TO MYTHBUSTERS!!!