I love, love, LOVE the work of Pop artist artist Ed Ruscha. His paintings are sublime and his word ribbon drawings are pure perfection and the perfect starting point for an observational drawing project.
I found the original lesson idea years and years ago on the Incredible Art Department website. I can no longer find it unfortunately and the website is defunct. I used it so much in my early years of teaching!!
Grade 10-12 students chose a word(s), in any language, and then constructed them out of strips of heavy white paper. Then they hot glued them to a sheet of white paper. Finally, they drew the word directly from observation. They had to include a full range of values.
I always love how these turn out!!