Google SketchUp Export - 3D PCB Model
This free plug-in creates a "dae" file in order to import PCB data to Google SketchUp.
All you need are ODB++ or IPC-2581 data of your design to export the board with its components in one file. You can decide whether you want to export all or just certain components.
The 3D model of Google SketchUp is very useful for a short customer presentation or to check the heights of the components in 3D.
Google SketchUp can be downloaded here: http://sketchup.google.com