To make a stencil, you will need the sheet the template was cut out from (the negative of the design), some white chalk or paint, and an abundance of patience. Draw a simple outline onto the desired area on the sheet, being sure to leave plenty of extra room around the edges so you can easily remove the stencil later. Once your outline is complete, cover it up with a thin layer of white chalk or paint. Wait until the paint has dried or cured before removing the stencil.