Inflatable Origami Water Balloon
The inflatable origami water balloon (also called water bomb) is an easy to make, working working toy.
Submit your questions/comments and photos to us!
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
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Now start to collapse the pre-folded piece of paper.
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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).
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Now fold each of the four corners upwards as shown in the next three photos:
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Now fold the four horizontal corners into the center as shown:
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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.
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This sequence shows the flap folded, then tucked in.
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Now fold and tuck in the other three flaps.
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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...
Thank you to our reader, Birch-Lily from Waldwick, who submitted this photo to us!
Reader's comments: Easy and fun, best made of newspaper if left empty. Do not i repeat Do NOT fill when made of newspaper. It will leak and it will not be pretty.

Thanks to another reader who submitted the photo below. " This is my origami balloon,made using your instructions and a blank sheet of white printer paper that I cut into a square. "
Thanks to a reader from Melbourne for their origami water balloon:

Thanks to reader Devin from Lowell for his leopard print origami water balloon! - " This is a fun origami balloon to do. One time I had filled it with water, but then got very leaky. I used my origami paper from my origami animal kit."

From reader in Cadiz: