This is a distinctive balisong, also called a butterfly knife, that has been specially crafted. What sets it apart is the way the blade can be quickly revealed or hidden as it fans out on a hinged pivot. Unfortunately, many nations have banned the use of butterfly knives. To achieve its unique appearance, lemon and mustard have been applied to the surface to create a forced patina.
If you think it's messy now, wait until you see it under a blacklight
