With the aid of a pistol the magician shoots a silk into a clear balloon (or vanish a silk by any method). Tossing the balloon into the air, the audience sees that the silk did not penetrate completely. The corner of the silk is sticking through the balloon's wall. Without breaking the balloon, the magician slowly pulls the silk out!
The balloon really has a hole where the silk penetrated.
This trick is for the advanced performer.
Instructions not provided for the silk vanish.