@Vincenzo -- you can have a lot more fun with the Rorschach test, at least. Here's an example. My mom is a psychologist. We made sugar cookies around Christmas. You know the process. You roll out a sheet of cookie dough, cut out shapes with cookie cutters, roll up the scraps and then roll out another sheet of dough.
You are supposed to repeat until you are out of dough.
Mom, though, had a different idea. She took those scraps, cut them, decorated them and then cooked them. The result was the Rorschach Christmas cookie. Celebrate the holidays and facilitate analysis at the same time, right?