We have used the
classic 'Bird out of a cage' and "Bird in the cage' picture but you
should think of one of your own. You can also use writing to make a complete
sentence for example 'I' and 'You' on one side then 'Love' on the other.
Almost any picture can be broken into two parts but it helps if they each
mean something on there own as well as complete.
This project is know as an 'Optical
illusion' because it tricks your eyes into thinking there is a whole picture
when in reality you are looking at two separate pictures.