Introduction: Awesome School Spy Gadget! Invisible Ink Pen Hack

With this awesome hack you can send secret messages to someone or even cheat in class tests.


An eraser
An invisible ink pen with its light
A cutter
A push button(you can find one in old electronic junk)

Step 2: Invisible Ink Pen

First we need to separate the light (top part) and the invisible ink pen as you can see in the picture above. We also need to get led and small cells out of the top part.

Step 3: Eraser

Cut the eraser as shown in the above picture.

Step 4: Cutting Time!

Now cut the eraser accordingly to fix cells, pushbutton and led as in the picture above and make sure the whole eraser fits in the erasers original case.

Step 5: Assembly Time!

Insert the eraser back into the cover and also close it by adding the front part of eraser as shown in the picture above.

Step 6: Now Enjoy!

Use it to write secret message to your friends at school or cheat in class tests by writing on your hands, clothes or your arms.Just open it up by pulling out the front eraser part and push the button to see your secret message.
Whatever you do just don't get caught and be creative.
Share this instructable with your friends and loved one's.

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