This mobile is made out of wood dowels and disks painted with acrylics. The disks are 2-4 inches in diameter; width is around 18 inches; and height is perhaps 30 inches.
It has a very different look from the previous one posted and is quite different from most mobiles one sees. Does it work? That is a subjective question, of course. What I like about it are the bright, contrasty colors, all of which stand out against the black bars that form the backbone of the piece. In addition, all of the bars and their attached disks can rotate freely in a full 360 degree circle. This tends not to be the case among most mobiles, because one bar or layer is joined to the next with a metal link or direct attachment that restricts rotation to around 90 degrees–sometimes a bit more–and tends to push the different layers to line up one on top of the other.
This mobile, on the other hand, joins one layer to the next with nylon line, which allows for complete freedom of motion with respect to the bar and disk above and below. The effect, then, if there is air circulation in the room, is to see all layers (bar plus colored disk) rotating separately, creating a constantly changing pattern and an infinite set of geometric relationships.