American Anti-gravity has an ongoing project to create "lifters". The book has detailed construction information. For brevity, you can see the web site and MPEG videos of test flights here.
This is a lifter in flight. The power is fed to the corona wire on the top of the triangle. There are thread tethers below to keep it from flying out of the box. The lifter is just some balsa wood sticks, aluminum foil and some 30 gauge magnet wire for the corona wire. Power input is 30,000 VDC at 1 mA.