cityscape - I love the black line drawing against the richly colored skies. * I think I would add colorful water below to balance it and show the "colorfulness" of nature contrasted by the black and white of the city.
painting like Michelangelo. Instead of just having sketching time- discover and study Michelangelo, how he hanged upside down while painting. This is also great for students struggling with fine motor hand writing. It builds strength in pincer grasp.