2013 Warp Drive Design I made by eye from illustrations in recent articles like:

http://beforeitsnews.com/space/2013/05/nasas-warp-drive-project-speeds-that-could-take-a-spacecraft-to-alpha-centauri-in-two-weeks-even-though-the-system-is-4-3-light-years-away-2459620.html

and...

http://io9.com/5963263/how-nasa-will-build-its-very-first-warp-drive

...also, here is a cool video of what the warp drive might look in action:

http://www.youtube.com/watch?v=9DhdImUroaE

This is the latest Alcubierre Drive design that should be much more energy (and exotic matter) efficient. Great toy for kids since it is a more, "real", starship.

The image above was printed on a 3rd gen Solidoodle at 1/3 scale with full support.