This swap card features the chalkboard technique. There are several ways you can do this technique. Ilse used Stampin' Up's White Craft Ink and a sponge dauber. You probably already have something on hand that can be used to draw the lines around the edges, such as a piece of white chalk; turn it on the edge or sharpen the chalk to a point in a pencil or crayon sharpener. A white crayon or pencil crayon works too (I raided my kids' crayola boxes ages ago).