I imagine them looking a lot like Gecko Moria’s giant pair of scissors that are capable of being detached to use the blades as dual-wielded weapons much like Gecko Moria’s and are black and white in coloration. Also, because Armaments are imbued with the powers and traits of the Merge Modes they are created from, the Ninja Scissors would actually use the powers of Light and Shadows for extra powerful cutting/slashing attacks and are typically used as a very swift and fast weapon, especially if Fusion-X uses them as a very fast Merge Mode such as Acceleration Merge.