A test in concentration powers of the audience where the magician fills a glass with water and placing a cardboard square at the brim inverting it all. The square of cardboard is removed and the water remains within and the audience is asked to have one person say Now and when this happens the water falls out of the glass!

Two different glasses both having fine ground flat brims along with tiny hole near bottom for this effect that will garner the attention of all viewing. You will need some thin clear acetate disks that are easily made to complete this effect. Includes instructions. Just remember drilling a hole in glass is not an easy task. Condition very fine.