When I was pregnant Tim got a bag of swag from Meijer. In it, among other things was a pair of cheap Gerber(non-Nuk) pacifiers. I promptly forgot about them.
I recently found them again and thought, "Why not try them out?" She generally uses MAM pacifiers. When I gave it to her she started sucking on it, but then pulled it out of her mouth to look at it. It was kind of a "What the heck is this?" look. She still likes to chew on it though.