Students draw commercial type objects such as beer, ketchup, chips potatoes, cookies ... and more and more.
Andy Warhol did pictures of commercial type objects such as Campbell´s soup and Coca-cola. He would repeat the object many times, often over 100 times. Maybe that´s because the things he did in his art actually existed in such large numbers. When he made a painting everyone knew the subject of the painting because it was something o someone that was seen everyday.