detergent [ i used Purex,but any is fine]
Mix the glue and detergent together,adding more glue or detergent if necessary.Let it sit somewhere to absorb some air.
After a few minutes,roll the slime together in your hands until it's more solid,like putty
Use markers or food dye to customize,and enjoy!
WARNING: Does not work well on fabric, and for best results, store in an air tight container