Silent Auction Canvases. There’s a new glossy decoupage called Collage Pauge that works wonders. It’s glides on, dries within minutes, and adds a rich shine and protective coating for the canvas. My $15 16 oz. bottle covered about twenty 16" x 20" canvases. And by the way, these exact canvases can be purchased at Micheals right now for 50% off of the 2 piece Value Pack – or about $2.50 each.