If the cloak is given out as a practical joke...then yes, the whole cloak would stop working.Although if the person that recieved the cloak passes it on to another person, telling them that the cloak has invisiblity powers, then the cloak would work again. Go to Comment
First of all, I like this idea a great deal. Bravo.
One question...since manfred already covered my other one.
What happens when the robe gets a tear? Maybe a rip from putting it on, or from a slashing weapon. Can the robe be restitched and still have the flawless appearances, or would the wearer only look half naked? Go to Comment
A culture has a tradition of wearing animal pelts as a sign of status or job. Carpenters might wear beaver skins, Masons have a moleskin hood to their cloak, Gaurdsmen might have badger pelts. Done to show the culture's respect for nature and how much of nature is equal to each other.