Clip Arts Related To : Draw a Petri Dish: Start with a circle or an oval shape to represent a Petri dish. This is where Alexander Fleming first discovered penicillin. Add a Mold Culture: Inside the Petri dish, draw some irregular blobs or patches to represent the Penicillium mold from which penicillin is derived. Include a Capsule: To represent the medicinal use of penicillin, draw a simple shape of a pill or a capsule near the Petri dish. Coloration: Use simple, flat colors. The Petri dish could be a light blue, the