The first one is a ruffler that belongs in the Attachment box. The second is the single thread embroidery attachment. This one loops the embroidery thread as it sews it down.
The third also looks like an embroidery attachment, possibly the kind with the swing arm that weaves the embroidery thread back and forth in front of the needle so it's sewn down in a sort of zigzag pattern. This is a variation of that type that I have, also for White.
