You have mentioned state outlines on courts before on the blog. Do you know if there is a list anywhere or do you know many off the top of your head?
Here's what I have:
Current: UNC, Indiana, Mizzou, Texas, Texas A&M, Michigan State
Former: Tennessee, Kansas
The earlier entry on state shapes and outlines was posted roughly a year ago and is available here. It features a photo of Tennessee's old court design. Kevin was also kind enough to provide a link to Kansas's old court with the shape of the state (click here and then see Comments).
Missouri's court (shown below in a screenshot I made from YouTube) seems to barely qualify, as the relatively faint state outline is overwhelmed by the Tiger logo.

I don't know if Michigan State should be included, as its state shape is not used as the main center-circle design, but rather in a complementary fashion.
To the list of schools that formerly featured a state shape at midcourt, we can add Ohio State (St. John's Arena) and Oregon. Also, I think Kentucky's pre-Rupp Arena court may have featured a state shape, but I can't find any photos right now.