She’d rather draw than sleep: Mackenzie Collins, 12, shows some of her cartoon animals in her Arlington Heights bedroom. Mark Welsh | Staff Photographer   In a matter of seconds, Mackenzie Collins, 12, draws this cartoon cat wearing a hospital gown. The Arlington Heights girl created a series of cartoon animals inspired by images in the elevators at Lurie Children’s Hospital in Chicago. Mark Welsh | Staff Photographer   Inspired by animals used in the elevators to designate floors at Lurie Children’s Hospital in Chicago, Mackenzie Collins, 12, of Arlington Heights turns them into cartoon creatures she draws and names. Mark Welsh | Staff Photographer   During her medical appointments at Lurie Children’s Hospital in Chicago, Mackenzie Collins, 12, passes out hundreds of drawings she makes of cartoon creatures she calls her “Lurie Animals.” Making her fellow patients smile makes her happy. Mark Welsh | Staff Photographer   The white cat in this illustration helps patients and their parents remember what floor to go to at Lurie’s Childrens Hospital in Chicago. It also inspires Mackenzie Collins, 12, of Arlington Heights to create hundreds ...