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Set the mixture aside when you are done. This method is meant to be used with glitter glue, but you can use it for white school glue as well. Simply reduce the borax to ½ teaspoon and the water to ¼ cup (60 milliliters). This will help make your slime more slimy and gooey. If you cannot find any glitter glue, you can make your own by mixing in about 1 teaspoon of fine glitter into clear glue. You can also add some color with a few drops of liquid watercolor, liquid food coloring, or gel food coloring. You can also use white school glue for this method, but you will need to add about 1 teaspoon of fine, crafting glitter. You can add some color to it too, but keep in mind that the color will be very pale. The slime will start to come together and form almost at once. At some point, you can even use your hands to knead and squish the slime. Once the slime has come together into a ball, take it out of the bowl. There will be some liquid leftover in the bowl, which is fine. Simply finish kneading the slime outside of the bowl.  Don't let the slime sit too long in the borax mixture, or it will turn too hard.  If the slime is too runny, put it back into the bowl with the borax mixture, and wait until it hardens again.
Mix 1 cup (240 milliliters) of water with 1 teaspoon of borax. Mix 1 tablespoon (15 milliliters) of water with ½ cup (120 milliliters) of glitter glue. Pour the borax mixture into the glue mixture, then stir everything together. Take the slime out of the bowl, and finish kneading it.