Chisel is a Minecraft mod by AUTOMATIC_MAIDEN which adds a huge amount of decorative blocks. Ported primarily due to the fact that MAIDEN's mods are under the GPLv2.

• Original Thread

• AsieLib 0.1.8+

• Autoutils 1.0.1

NOTE: This fork has been taken up by Pokefenn. Here's a link.

• Chisel 1.5.3
• Older versions

• Chisel 1.5.2
• Older versions

• Added: Far more config-level configurability for the mod's available features and behaviour.
• Changed: The config format. Cleaned it up a bit. Watch out!
• Fixed: Marble stairs and limestone stairs now work!
• Fixed: Partially attempted to fix the “left-click-with-chisel to make block disappear” bug.

• Added: Chiselable Stained Glass and Stained Glass Panes.
• Changed: Textures are now compressed with pngout, cutting the mod's size from 4MB to 2.1MB - an almost 50% reduction!
• Changed: The internal mod-specific names used in the GameRegistry. worlds saved with Chisel 1.5.1 will *not* be compatible, and worlds saved with Minecraft 1.6.4 and below probably will not convert perfectly as well, but this was done for the better - mod collisions could've and would've happened otherwise.
• Fixed: NPE with certain blocks' rendering.

• Ported to Minecraft 1.7.2.
• Added: Support for Acacia and Dark Oak planks.
• Removed: Overriding vanilla blocks.

• Fixed: Marble duplication bug.
• Fixed: Glowstone dust now drops and stacks properly from chiseled blocks.

• Fixed: The left-click-with-chisel-makes-blocks-disappear desync bug.
• Fixed: Re-save your world with this version of the mod to get better 1.7.2 compatibility.
• Fixed: Recompressed textures with pngout to reduce filesize (3.8MB → 2.1MB).

• Source code