Along with BB they have a completed model for Movie Starscream. This project stems from the original Paper Robots crafts that brought us G1 Optimus Prime in full transformable paper glory.
Bumblebee's Arm

Bumblebee's head

3D Prototype Starscream

Completed Starscream

Original Paperbot Prime

To view all the pics of these amazing pieces, and to download the instructions to create them, click here