Button Tractor! Outline the shape on a piece of canvas (I used the thin kind). Paint the different sections the according color (buttons will overlap, but you won't want white to show through). Cover as much as you can with large buttons, & fill in the spaces left over with smaller buttons. It was easy, but time consuming. I framed it by placing the canvas in a picture frame without glass. Note: Buy the canvas & frame together so you know how it will fit together!