If I were ever to get a tattoo for my sisters... this would represent Emily. my parents always called her sunshine.      Google Image Result for http://www.tattoodesign.co.uk/wp-content/gallery/sun/sun-tattoo-1.jpg

Low cognitive effort- all of these symbols are clear, they mean the sun. In weather when you see them you know it will be a hot sunny day. The sun doesn't even really look like any of these yet we know it stands for the sun