Ok, so it ain’t art.  But c’mon! Ninja babes! From space!

Could this be the reason?

I am incensed!  I followed the instructions here, and made myself a ton of new shuriken for a tiny percentage of their normal cost.  But when I went out on my next assignment, the damn things nearly got me killed!  Turns out steel is a much better material for ninja stars than origami paper.

…if the ninjas involved were INU members.