: I am a high school technology teacher with students building a small car.
: They plan to use fiberglass to form the body shell. I need infomation on
: building a plug to form the mold. I plan to build the plug from wood
: strips as if we were building a kayak. Have I lost my mind?!!!

Yes I think so :-)

If the car doesn't look like a canoe of course

otherwise hard expensive plastic boards 50mm-100mm thath you glue together and than shape to the desired shape is the trad. way of making a plug. If you have a cad solid modell you can slice the modell and print, and glue them to the plastic boards

Anyhow it is a lot of work to make a plug

Rapid prototyping is cool