There is a recent thread talking about getting people interested in joining a Fiero club. Our club prints up fliers, 4 1/4 x 5 1/2 inches (4 per 8 1/2 x 11 sheet of paper). We put the club info, including meeting time and place, a brief sales pitch, phone and email.
On the back, we list local Fiero-friendly repair shops, contact info for the Fiero Store, Rodney Dickman, etc. We also list Internet resources like the lists and Pennock's.
The fliers are small enough that you can carry them in your wallet (I keep a supply in all my vehicles). You can hand them to someone you're talking to, or leave them on the dewstrip on the driver's window.
Here are scans of our current flier: