The EasySling

A sling to hurl oversize water balloons, waterballs, zucchini your mother grows that you would rather fling than eat, and anything else that will fit in the sling. Can be built in about 10 minutes, and materials can be found around the house.

P.S. Don't forget to rate it if you like it :)


Step 1: Gather Your Materials and Tools!


1) Old T-shirt
2) rope (about 20 feet)
3) Duct tape
4) ammunition


1) Scissors

Step 2: Measure Yourself

1) Measure yourself from the floor to shoulder height.
2) Take that number and double it.
3) cut two lengths of rope that are your shoulder height doubled.

Example: I am five feet from the floor to my shoulders, so I will double that. I end up with 10 feet, so I will cut two lengths of rope 10 feet long

Step 3: Cut T-shirt

cut a rectangular piece of cloth 10 inches by 7 inches from your scrap T-shirt.
(25.4 cm by 17.78 cm)

Step 4: Reinforcements!

Tape duct tape on all four corner to reinforce the areas where you will be putting your rope through.
(duct tape only needs to be on on side)

Step 5: Make Holes!

Make Holes in all four corners through the duct tape and cloth.
I just stabbed it with my scissors, but you may want to do this differently.

Step 6: Feed Rope Through

Flip your cloth over, then feed your rope through one hole and out the other.
(do this on both sides of the cloth)

Step 7: Tie Some Knots

Even out the ends of your rope and tie a simple overhand knot with the two.
Do this with both ropes.

Step 8: TADA!

finished with the sling

Step 9: Holding the Sling

take your dominant hand, and feed one of the knots between your middle and pointer finger. bring the knot over to your pinky and hold the knot loosely there. bring the other knot between your pointer and your thumb, and pinch it there. Now, clasp your hand into a fist.

Step 10: Sling Stuff!

put whatever you are flinging into the pouch (preferably, something soft for your first sling).
The object will have to have some weight to make it possible to spin the sling around your head. once you are holding the ends of the ropes, and you have your projectile in the pouch, check your surroundings. Make sure there is no one around you, even behind you. If you release at the wrong time, your projectile could go flying anywhere! Start to spin the sling around your head. Release the knot that is in between your pointer and your thumb when you feel your timing is right. When done correctly, your projectile will fly very, very, far! (I have gotten a water balloon to fly about 100 yards)



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    68 Discussions


    6 years ago on Step 10

    What happened to the video? When I press play it says that the video does not exist.

    jack penny

    8 years ago on Step 2

    RUN-AWAY!!!, RUN-AWAY!!! love that movie


    9 years ago on Step 1

    I'd omit the duct tape, personally. Though it may work I'd prefer to reinforce the corners by doubling it up on itself and sew it together and whatnot.

    Also, what kind of rope did you use?

    1 reply

    9 years ago on Introduction

    after reading through the comments, i noticed you said that a thicker string is better. well i beg to differ. the thinner the string, the faster you can sling it, the faster you sling it well, i think you know what happens. p.s. i have never had any tangling problems.

    how farther a point is from the center of the spinning motion, how faster it moves, and how more momentum (power) it has. it's basic physics, dude!

    I think it's to add more power, but I found it much easier to start it spinning if it's about a foot of a foot and a half shorter than your shoulder height.


    10 years ago on Introduction

    nice sling have you ever looked into putting your expertise to making air cannons. they are for sure the best thing that you can make for shooting things.

    2 replies

    actually, I have :) I have two currently assembled. One is freaking huge and shoots tennis balls (really far, I might add) the other I use as a shotgun for airsoft and paintball wars. it scares the crud out of people :P