[mb6606]

Flashlights are ok but to really get the correct plane feel you need to step inside a plane board set to the turned shoulder plane.

I made a lightweigt portable 1/2 plane out of two sheets of 8'x4' styrofoam insulation (Lowe's). Cut the half moon using a cheap soldering iron. Hold together with duct tape. You could easily cut in half (for smaller storage) and hold together with duct tap. Prop up with a couple of dowels.
To make a full plane duplicate above and duct tape together.