Well, here is my 2 centavos worth:
That thing that looks like a ZZ might be a blind hem stitcher. I've seen a couple pics and they have that extra thing on the end. I have a couple of the ZZ's and they don't.
Plastic part to the right of the ZZ'e is part of a "Unique Invisible Zipper" foot kit. We have two and half kits.
Next to the right is an adjustable zipper, cording, straight stitch foot.
Next to the right is an adjustable hemmer.
Bottom middle is a button foot.
Thing to the bottom right is some sort of mounting bracket.
Joe