Gave up when South Carolina wouldn't take. Nebraska's shape is interesting. It's usually depicted more reclined (as in the eastern border is slanted more, but a GIS came up with a few results with the shape in this quiz. Maybe it depends on the projection used?
Shapes are from Jetpunk, like used in other quizzes. I think it's a cylindric projection. If you switch off the globe view on google maps, the shape looks similar.