"You're not a very good advertisement for your own preparation, are you?"

Well, you're a pretty good advertisement for them if they need one.

If you want to start some kind of a business, paint's a good advertisement.

It was exciting - they were good advertisements, and we waited for the first children to come.

That's a good advertisement to keep anyone else from trying the same thing, wouldn't you agree?

To Churrito* this seemed like a pretty good advertisement for staying right where he was.

The second says he thinks it's a good advertisement for healthy eating.

Everything considered, Gann's family made a good advertisement for marriage.

"I think it will be a good advertisement for the show," he said to himself.

Unhappy clients are not a good advertisement for the firm.