The Inside and Outside of Two Identical Vegetables/Fruits (ideally something that is green, like a lime or an avocado (or a lemon you can pretend is a lime), a green apple, or a bunch of scallions/green onions, a green-ish pear, etc. but that’s not required). This works best if you have one whole one and one sliced in half, or quarters) using black and white pastels, erasers pencil sharpener on light green pastel paper (half sheet).