Instructions on making cheap, easy water balloons just out of a square of paper. If you don't have pre-cut squares, you can make them out of rectangular sheets by cutting them into squares.

Step 1: Folding

First fold your square in half diagonally. unfold and repeat on the other half.
that was reallly cool!!!!!! it blew up so fast! this progect was really fun i'll have to teach it to all my friends! thanks!
it is really hard, i think there is a certian way you have to fold it in the last step, not just any way you want to. but i am not that good at origami, so i couldnt tell you which way. :) <br>
uh....... well....... that was chllenging. i think this triangle thing is called some kind of base and you cant fold the paper in half any way you want to. i had to change the way i folded mine to make it work. the progect is working good so far though. :)
it was ok. it was actually pretty easy! <br>
oops! i wanted to post my last comment on the next step! oh well, now you know
If you make it out of wax paper won't it last a bit longer before getting 'mushy'?<br /> Just a thought<br /> Toddjwood<br />
&nbsp;A detail missing here is to do four total folds up, not two. In other words, fold the top flap's left and right corners up, then flip paper over and repeat for the back flap's left and right.
<em>that&nbsp; is&nbsp; hard&nbsp; i&nbsp; did&nbsp; you&nbsp; that</em><br />
Wouldn't a better title for this be paper water <em>bomb</em>? It doesn't seem like much of a balloon to me.<br/>
that works also
They just call it that because you have to blow it up.
Agreed. I make these all the time just to throw around and kick and play with when i'm bored to death in class.
Here's another use for it.<br/><br/><a href="https://www.instructables.com/id/Pocket-sized-Explosion/">https://www.instructables.com/id/Pocket-sized-Explosion/</a><br/>
thats cool but mine just unfold when i do it
kool, ive seen it b4, but yours was more clearer than other ppls, but I made about 20 of em' :) and launched at my brother with my friends, HaHa :]
actually, mine dont get soggy on the outside, only on the inside, they last like 10 minutes before the turn to mush. what kind of paper are you using?
normal printer paper
hm,wierd, so am i
......this has already been posted......a couple times i think......
ok, good to know?

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