We've been using our new Diamond Plate stencil for all the things. Literally. Pillows, bar stools and now we're using with silver leaf to show how to make a shiny diamond plate design, to make it look brand new. In this tutorial, Patricia Rawlinson shows how to paint a diamond plate sign. She teaches how to make an embossed background, how to use silver or gold leaf and how to make faux rust with paint.