(If the end of the thread without the ball is dangling down and touching the pan, cut it so it does not touch the pan.) Why do you think it's important that the ball touches the pan? Adjust the straw's position if needed. Tape the thread to the tip of the straw so that the ball of foil hangs straight down from the straw, just touching the edge of the pan.The ball should be about the size of a marble or smaller and be just tight enough so it does not fall off the thread. Use it to make a ball around the knots in the thread. Cut out a one-inch square of aluminum foil.Tie a few knots in one end of the thread. Cut a piece of thread with a length that's about two or three times the distance between the straw and the pan's edge.Adjust the straw's position so that one end of the straw is right above the edge of the pan. If you are using clay, stick four little balls of clay (each about one half inch in diameter) to the rim of the cup, then turn the cup upside down and stick it to the aluminum pan. Next, use tape or four small clay balls to secure the cup's opening to the aluminum pan (flipping the cup upside down). (Always use caution and an adult's help when manipulating sharp objects.) Push a plastic straw through both holes.
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