DIY Magnetoplasmadynamic Thruster Design

Ana10g writes "Are you looking for a thruster for that spacecraft you've been building on the side? Matthew Krolak's How-To Article details how to build a Magnetoplasmadynamic Thruster may have the answer. It actually seems to be fairly straightforward, and the parts are readily available." Looks like a great project to do with very small children in a garage full of oily rags.