Bread Gnome -- What can we say? This is an adorable bread gnome. You eat his hat, which would be rude if he were a real gnome, but he's actually just an imaginary gnome that's been printed on a bread bag. (Yes, there ARE real gnomes, get over it.
Here is a great example from Natan Jewelry Shop (Sao Paulo, Brazil) of guerrilla marketing. The company did a great job using promotional stickers or decals in order to show their female target market how beautiful the jewelry would look on them.