I just made a sig its my first time though (i am a n00b) but still ....
here's what i did.
-took that dragon and put it on a gradient background.
-took that round yin yang thing(not sure if this is what its called) placed it there
-made about 40 copies of the yin yang layer
-selected the 40 copies one by one and using transformation option and assigned a rotation of 9 degrees more than the layer before it for every layer.
-when reached 180 started reversing the rotation but in negatives(hope you get what i mean)
-then made it into a gif
if there is a better way of doing it please let me know..
and here is another 1
it is better than the 1 before....
ok improved the dragon one today .... i just used another ying yang that doesn't have a shine on it