Corn flour gloop is a great way of providing young children with the opportunity for sensory exploration.
It is also great for mark making, children can use their fingers to press and move the gloop creating lines and circles. You can also add food colouring or hundreds and thousands to make it a little different.
Use any tray or bowl, the one we have here is a cat litter tray, readily available in most shops.
Add 2 cups of corn flour to 1 cup of water and stir. Adjust slightly to the consistency you want.