It is amazing how you can create so many interesting marks and textures with common ordinary objects and household materials such as an old plastic credit card. One of my students in my Wednesday WHAL Mark making class introduced me to this credit card technique. You begin by placing paper (in this case we were using waxed deli paper called Kabnet) over an old credit card and making a rubbing with a pencil or black crayon. Plastic credit cards can also be used as "a palette knife" to spread paint on paper or canvas. You can also scrape into a painted paper with the edge of the credit card to create nice lines and marks.