How to Make: Goo!! w/o Borax This a totally fun Project for school age kids. When I taught daycare back in the 90s we made this all the time. I will point out that StaFlo starch has borax in it, so its not exactly borax free. In fact at one point the company removed it from their formula and we were no longer able to make our beloved Goo. In this 2014 video it seems that borax is back in the formula YAY.