DIY Water Marble Keys- Don't Get Confused Again

Have you ever got confused with the keys? They are all the same and you don't know which one is the good one and you have to prove all until you find the correct.
With this instructable you'll learn a method to differentiate and decorate your keys.
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Materials

You'll need:
-A key
-A glass with water at room temperature
-Toothpicks
-A cotton swab
-White nail polish
-More than two nail polishes of the colour of your choice
-Clear nail polish

Prepare the Key

With the white nail polish paint the key (just the upper part) so that the marble design sticks well on the key.It doesn't have to be perfect, remember this is the undercoat. Let it dry.

The Marble Design

Take the glass with water and with the nail polish put some dots.This dots will expand.Do the same with the rest of the colours. With the toothpicks mix the colours until you like the design. Remember to do it slowly.

When you have the design take the key and introduce the white part in the centre of the colours. While the key is inside take the cotton swab with the other hand and remove excess.Take the key out of the water and let it dry.

Final Result

With the toothpicks make the hole of the key.Then with the clear nail polish paint the key again to protect the design. Let it dry and now it's ready to use.