Palutena's Bow

The Bow of Light, otherwise known as the Sacred Bow of Palutena is the main weapon of choice of Pit in the Kid Icarus series. Pit uses the bow to fire arrows of light (Palutena Arrows). In Super Smash Bros. Brawl, it was revealed that the bow can actually split into two seperate swords that can be used in hand-to-hand combat.

Super Smash Bros. Brawl Trophy Description
"The bow Pit got from Palutena after the Medusa incident. As a standard bow, it's capable of firing arrows of light that can change direction. It can also be split to form two short swords--Pit holds one sword in his right hand in a standard grip and one in his left in a reverse grip. He may hold them like this so he can shift between bow and swords without losing a beat."
 * Kid Icarus, 1987