Now there's an exciting title! www.peda.com/poly/ has a software download which I find really useful. You can choose from an enormous variety of solid shapes, rotate them and then explode the net. You have full control over the speed of the rotation and the net opening. For a full size view please remember to press the 'maximise' icon as this is not defaulted. You can also change the colour of specific faces to highlight the 2D shapes used.
