This looks like a bit of an oldie, but after hearing about it on NPR I just had to look it up.
Apparently this skirt is a safety device, in case you are ever being pursued or attacked. It allows you to transform into a vending machine, while your attacker is left wondering where you could have possibly disappeared to. This is pretty damn weird if you ask me, but pretty fun all the same.
It would certainly make for a great Halloween costume if nothing else.