#3 Represent a "hybrid" image, the top half is a yogurt and the bottom half is a pencil. Why a pencil? Usually the pencil is used to tell the "edit" concept or "design" concept, so in general the logo represent: "edit/design your own yogurt flavor"
I like this but I am not sure a consumer walking past the store will see the pencil. I like that it is subtle, but maybe too much. I think that the link between drawing and creating your own yogurt may be a little to far and the yogurt looks like an ice cream cone.
Can we also remove the black background and have it sitting on just a white background.