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We use standard size 6 inch x 6 inch (15cm x 15cm) square origami paper for this site unless stated otherwise. If you can, use different types of origami paper to change the look of the finished origami and have fun with it!


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Inflatable Origami Water Balloon

The inflatable origami water balloon (also called water bomb) is an easy to make, working working toy.


Made this origami? Comment and Submit your photo using the comment box at the end of this page!


You can check out our water balloon video instructions, and/or follow along with the photos below.

Start with a square of paper. 

Then make mountain and valley folds as if you were making a square base

The difference is that the mountain and valley folds are reversed when compared to the square base. 


Origami Water Balloon

square of origami paper, ready to fold    

mountain and valley folds



Now start to collapse the pre-folded piece of paper. 

collapsing folded paper

further collapsing of folded paper



You will end up with the folded triangle shown below.  This piece occurs so often in origami that it has its own name, the balloon base (or water bomb base).  

origami water balloon base


Now fold each of the four corners upwards as shown in the next three photos:

one corner of balloon base folded upwards

two corners of balloon base folded upwards

all four corners of balloon base folded upwards



Now fold the four horizontal corners into the center as shown:

horizontal corner folded into centerline

four horizontal corners folded into centerline



Use your finger to expand the little pocket as shown below.  You are going to tuck the flap into the pocket. 

However, the flap must first be folded in two to make it small enough for the pocket.

pocket and flap to be tucked in

flap being folded to fit pocket



This sequence shows the flap folded, then tucked in.

folded flap

flap tucked in



Now fold and tuck in the other three flaps.

all four flaps tucked in



Finally expand the balloon as shown below.  First unfold the balloon partially, then blow gently into the hole at one end. 

At our school, we actually filled these with water for some recess hi-jinks...

water balloon ready to be expanded    

completed origami water balloon


This is a much loved origami and we've received many photos from our readers. Check out the origami water balloon as folded by our readers!

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