The 3rd tier has a separate piece of fondant cut into a cirle and laid over the top after the final icing. The stripes are cut pieces of fondant that are added also.
I can't see the top well enough to tell how it's done. If you know where the pic came from email (if CC Pm) and ask.
Looks liks the 3rd tier is a round cake decorated like a hat box (should be instructions around here somewhere) looks like it may even have the swirl rolling pin used on the top (it's still early and my eyes don't want to cooperate yet lol). Top tier looks to be a square covered in fondant that has been rolled with the swirl rolling pin then overlayed with a band & bow. Anyone else have any ideas? HTH Pretty cake by the way.