STERLING PUBLISHING-Pencil; Paper; TONKA Diggers and Dumpers. We're tough we have jobs to do and we look cool. From Big Rig to Might Cement Mixer we're the TONKA diggers and dumpers and you'll have a great time learning how to draw pictures of us. Just follow the colored lines that show each step. It's fun to put pencil to paper and draw TONKA construction sites! Author: Steve Harpster. Softcover: 64 pages. Imported.