Supplies: balloons, an air pump and scissors.
Inflate gray or white balloon leaving about 13 cm flat tail (pic 1).
We are going to twist the first four bubbles of the same about 3 - 4 cm size. Twist the first bubble (pic 2).
Lock both ends of the first bubble in one lock twist (pic 3).
Twist the second bubble (pic 4).
Lock both ends of the second bubble in one lock twist (pic 5).
Twist the third bubble (pic 6).
Lock both ends of the third bubble in one lock twist. Twist the fourth bubble (pic 7).
Lock both ends of the fourth bubble in one lock twist (pic 8).
The fifth bubble we twist to make the handle. It should be long enough for you to hold it comfortably with two hands. I make it about 3 hands long or about 30 cm long. Twist the fifth bubble (pic 9).
The next four (the sixth through the ninth) bubbles we twist of the same size and lock them in the same way as we did the first four bubbles (pic 10 and 11).
Cut off the rest of the balloon (pic 12 and 13). We have made the handle.
Inflate a red balloon all the way (pic 14).
Trim off the nozzle of the balloon (pic 15).
I am going to use one balloon to make two blades. I make each blade about one third length of the balloon. Fold the balloon to find the size of the blade starting from the nipple (round) end of the balloon (pic 16).
Twist the blade (pic 17).
Attach the blade to the handle (pic 18).
Cut off nicely the rest of the balloon without deflating it (pic 19).
Measure the size of the second blade (pic 20).
Twist the second blade and attach it to the other side of the handle (pic 21).
Cut off the rest of the balloon. Congratulations! We have made the double bladed balloon lightsaber (pic 22 and 23).
We can use the same handle to make regular lightsaber with one blade (pic 24 and 25).
Have fun and may the Force be with you :)