Golan Levin and Kyle McDonald took some old code for converting between polar and cartesian geometries and hacked it to flatten out photos of flowers into panoramic landscapes.
Polar-to-cartesian unwrapping of flower photographs is the new flattening flowers between the pages of books. The Processing source code is available. NotCot applied the effect to chandeliers. I dorked around in Photoshop a little and you can get similar results using the "Polar Coordinates" filter...you just have to stretch out the image first. (via today and tomorrow)