Rock

The rock is the first object that you encounter, and indeed is the object that you start off with on all respawns. So far, the best way to acquire these is by mining stone slabs and decomposing them into stone poles and then rocks.

Stats
DMG: 3 (1 at wall)

Builds into
Sharp Rock (req: either a Flat Rock or Rock or item of greater durability to sharpen with)

Flat Rock

Built from
Stone Pole (makes 3 rocks)