[j3rt]

Any of these mounts can be made with a little creativity. Though, $48 for the filmtools unit is pretty good. The Pana-vise mounts (& knock-offs) can be sourced for as little as $20.

I'm a fan of multiply cams in-car. Using one of these, Quad, and a recorder you can record 4 cams all sync'd. If your handicam can record line-in your all set.