Here are some sketches I did for a commuter bike that is pretty liberal with its use of Cannondale technology, plus some detachable waterproof grocery/tote type bags. Also, it is supposed to be blue, not orange. Weird.
Here is an anal retentive rendering I did for a client at work. It is used to show what they make and where it goes. The vehicle is generic. I started with a pencil drawing, but the project changed half way when the client stated that they did not want to see any pen or pencil lines. The rest was done in Photoshop. I normally don't do things this tight as a pure drawing, so it was a really good learning experience.
Protected space explorers not only from the harsh environment of the ether, but lance, battle axe, sword, and mace attacks. However, the suit proved to be unpopular with astronauts, who often got chest hairs caught in the torso locking mechanism.