Waybe

Waybe is a Google SketchUp plug-in which helps you bring your SketchUp models into the real world.

Waybe can take a simple or complex SketchUp models, and unfold it into a printer-friendly format, maintaining all of the model's colors and materials. It's not exactly a one-click operation; for anything complex you need to divide your model into groups which get unfolded one at a time.

Waybe is popular in the classroom as it provides a low-cost solution (in this case free) for bridging digital 3D design with real 3D objects.