Wow this turned out really trippy. The thumbnail doesn't appear that way but when you stare at it in a bigger size it appears to move in a variety of directions and especially when you move your eyes around while still staring at it. Also something else that looks really cool is when you stare at it for a while then take your eyes off it for a bit and look at something like the wall and it appears like little dots are swirling around in a circle.
I made this in photoshop using brushes.
Sun Stripes [link]