Equal parts of liquid laundry starch and school glue.
SLOWLY mix starch in with glue... the more you handle it the better it will be.
If the mixture is too sticky, add more starch. If it is too stringy, add more glue.
Add a bit of color using food coloring. It's best to add this in first with the glue so it permeates.
This can also be stored and saved in a plastic ziploc bag for up to 2-4 weeks depending on your use.
Such a fun substance to work with and so much you can do!
We found our liquid starch in the laundry section of Walmart. It looks like THIS