Materials: a balloon; an air pump; sewing thread and scissors.
Inflate a balloon leaving a five—inch flat tail (Pic 1).
Twist the first soft one—inch bubble (Pic 2).
Lock both ends of the first bubble in one lock twist (Pic 3). This step is marked with arrows between points A and B on the scheme.
Twist the second fifteen—inch bubble (Pic 4).
Twist the third soft one—inch bubble (Pic 5).
Lock both ends of the third bubble in one lock twist (Pic 6). This step is marked with arrows between points C and D on the scheme.
Cut off the rest of the balloon. Loop one end of the sewing thread around the first bubble. Bend the second bubble to shape the letter C and fix the shape by looping the sewing thread around the third bubble (Pic 7). Congratulations, you have made the letter C. Choose appropriate color sewing thread to link the letter C with other letters. As you can see here the light color thread is hardly visible on a light background. After you made and connected all letters in words you can attach the signs you made to a wall with a sticky tape. Have fun and happy twisting :)