The guidelines were:
- shapes had to be organic
- three colors only
- shapes on one line had to be the same (could vary in size and color, but they all had to be the same shape)
Once they had one line of fishing wire on each corner of the hangers they could make a giant swirl for the middle if they wished. They also could have made another line of shapes but they were pretty sick of it by then!
There are lots of great videos showing Calder's kinetic art online-- I showed one indoor and one outdoor and then we compared and contrasted them before setting out to create one of our own.