Chisel

The Chisel is a tool added in the Beta 30 update. It allows you to carve messages in a method similar to signs on stone and wood type blocks. When you right click on a valid block, it pulls up a backdrop of the block to your screen, with an interface identical to a sign-writing interface over it. It removes 1 of your chisel's 100 durability. It also has a variant, the Moonchisel, which writes in glowing letters that only show up at night. The Chisel is crafted with a stick and an iron, whereas the Moonchisel is crafted with 1 Ithildin and a Chisel.