Picture of How to put water into an upside-down cup!
       This is a pretty simple trick that can be done with items you can find at home.  The trick is an upside-down cup with water in it.  If you pick up the cup, the water goes everywhere.  This is actually my first instructable and I am submitting it to the april fools contest.  Please view this!
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Step 1: Stuff you will need:

Picture of Stuff you will need:

This stuff you will most likely have at your house:

-a cup
-some water
-some ice
-a piece of THIN cardboard (you can cut one from a cereal box, and it will need to be bigger than the cup's lip
-some towels (optional, it is nice for clean up)

Step 2: Step one:

Picture of Step one:
This part is easy. 
Fill the cup with water half way and put in some ice. 

Step 3: Step 2:

Picture of Step 2:
Put the piece of thin cardboard on top (make sure that there is a seal on the cardboard) and flip the cup over.  If you have towels, place them around the place where you are going to put the cup.

Step 4: Step 3:

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Remove the piece of cardboard before it gets to soggy.  Remove it fast!  You will have a little water leaking, but it is okay. Clean up and now you have you joke!

Step 5: More ideas

Another thing you could do is do this a bunch of times on an entry way into a kitchen or some other flat surfaced location.  The victim would be trapped then because they can't just pick all of them up.  They would have to get a piece of cardboard and take out every single one out of the entry way.

Thanks for reading!
please vote!

lemonie5 years ago
It works a bit better if you fill it right-up, having air makes it a bit more prone to leaking.

Also, if it's filled all the way it just looks empty.
l8nite5 years ago
lol... we used to do this to waitress with their tip inside (obviously a GOOD tip)