No moving the cup
No touching the ball or scooping the ball
No sucking the straw (You can blow into the straw)
Grace is blowing air into the straw and is flowing out of the funnel at a high velocity. The ping pong ball is placed under the funnel, the low pressure created by the high velocity air going around the ball will keep it in the funnel. Once Grace stops blowing the ball will fall out of the funnel.