As promised, the Weekend Genius Challenge returns this week with a visual stumper. The graphic below contains 12 images that have something in common. Your job is to figure out what that "something" is. The order of the entries isn't important, nor is their position within the grid.
If you're the first to figure it out, you'll win a T-shirt of your choice from the mental_floss online store. Just put your guess in a comment and send it on. (Comments must be moderated, so they won't show up right away.)Â You can enter as many times as you like, but pleaseÂ put each guess in its own comment. Good luck!