To apreciate the above picture, you need to know that the Trans Dimensional Mystic (the guy in the picture) put many hours of work into each of the detailed artwork built into both sides of all four of the mobile's pannels. They shimmer in the light with colors that change across the rainbow as the breeze turns them. The bicycle wheel with the sticks through it is actually a very sophisticated way of hanging them so each pannel is far enough from the others that they only occasionally touch as even the lightest breeze turns them on the wheels ball bearings. In other words, many hours of work went into setting up the sequence you can click through above, a fun moment of system integration.