Magic Shop UK for Magic Tricks - Card Tricks - Playing Cards

Mac Fly is a new self-levitation: No gimmicked shoes! No magnets! You keep your shoes at your feet! No jacket or other folding screen hiding a part of your body! You begin clean, and you finish clean!...

Effect

You drink your favorite soda in a cup, and at will, the straw goes through the cup.

From the book's introduction:
 
The idea of this trick came to me in a fast food restaurant: I fi...