Stencil

The Stencil is a block from the OpenBlocks mod. This block is used to paint specific patterns onto blocks, such as Sandstone, Glass, Stone, and Canvas. These are created using the Drawing Table, and are made of Unprepared Stencils. There are 15 different styles of stencil carvings. Stencils can be found in chests in dungeons and abandoned mineshafts.

Usage
Simply place the block onto a face of another block, assuming it is possible to paint that block, and paint it with a Paint Brush.