This is not the ewww part so keep reading. Anyway this is how me, Janet and my Mom made slime. Above Borax and water boiled and cooled. 
Cups with glue and water.
I am pouring glue into a cup. Janet looks at camera.
We mixed water, glue and Borax/water to make slime.
We stirred and we stirred.
And this is how it turned out .... with color.