The outline of the black utensils looks a lot like . . . white ones!
The cover page of Douglas Hofstadter's international bestseller is probably one of the best known examples of ambiguous objects. Each of the wooden blocks casts three shadows : the first letters of Gödel, Escher and Bach. The author calls them trip-lets.
Starting from the left you can read A B C. Starting from the top you can read 12, 13 and 14. So the meaning of the middle character depends on where you start reading.
Maybe you don't like this painting at first sight. But it's a work of a genius. There are four scenes in one : you can see an Afghan dog, a face, a table with a fruit dish in the middle and a desert landscape looking out on the sea. The bridge in the landscape is the dog's collar, the figure in the desert is nose and mouth of the face.
These images are part of an ad campaign for Charm Motel, a Brazilian (where else !) motel that wants to promote its rooms with breakfast. There is only fruit here so I absolutely won't make any suggestions ... I assume you know what this is about. By the way, the motel seems to have a shop with toys for adults.