My favorite Mae West line is "Why don't you come up and see me? I got nothing on but the radio."

I also like liked Lois Wyse's line. She has an Ad agency in NY, she ran it with her husband, and when he died, suddenly (and very young) she keep the agency going, and made it a success. Some years later at a party she met a very interesting man, and told him-- "You seem to be very much like my second husband" He asked, How many time have you been married, and she replied "Once".
(they later married--)