Place the glue into a mixing bowl, add the shaving foam and mix well until fully incorporated.
Add your food colouring to the mixture - separate the mixture into separate bowls if you would like various colours.
Add the liquid starch one tablespoon at a time to the mixture. When the mixture starts to stick to your stirring spoon, that's when you'll pick it all up and start kneading it and stretching it until it is no longer sticky.
Store it in your Sinchies reusable ziplock bags