2 five ounce bottles of clear school glue
Pour two full five ounce bottles of clear glue into a cup or bowl. A little bit (on the order of Tablespoons) of liquid starch at a time and stirring well in between each addition of liquid starch. You want to keep adding until the slime is no longer sticky/stringy/sticking to the sides of the bowls. Once the slime is formed and you’ve kneaded to make it uniform, add your pom poms and knead them in.
Image Source: Polkadot slime