I saw a car and wanted to make sure the owner would remember me if he ever decided to sell so I make up a magnetic business card that said . .
INTERESTED IN THE BARRACUDANAME
PHONE
PHONE
I would make a nice looking card with an image of a cartoon cuda (see below) to give it some color and character. I also always put 2 phone numbers on the card just in case one had changed. I would hope that it looked good enough they would put it on the refrigerator and it would stare them in the face every day!!
The guy I gave it too still has the cuda and hasn't decided to sell yet . . .