Translations:The Legend of Zelda: The Wind Waker/Unused Textures and Models/71/en

It was originally intended that picking up an enemy weapon switched your sword icon to one of these. This can be seen in early screenshots, but it's not used in the final. The Boko Stick icon is used as a placeholder for the icons called longsword and spear internally, which most likely correspond to a Darknut's sword and a Moblin's spear, respectively.