Here is the recipe for 5-liter slim:
3 packages tapioca flour 5 liters of water food coloring
Combine all ingredients in cold water.
Bring to a boil, stirring until you get a good consistency and a nice color. The more it boils finer color it gets. (Tapioca flour is white but goes blank after boiling)
Do you have a kjokkere consistency, so you can have more tapioca flour (but must be mixed with cold water first and confectionery colors and then you can mix Up in "pot".
Ps: I've tried with woe
Water paint and it did not go well.
You get hold of tapioca in most Asian shops & nbsp;
Good luck with your experiment.