Fingerpaint #2

Thanks to Sarah for sending this in!

Mix sugar and cornstarch together in a medium saucepan over low heat. 

Add cold water and continue stirring until the mixture is thick. 

Remove from heat. 

Divide the mixture up into four empty margarine containers. 

Add a drop or two of food colouring and a pinch of soap flakes or a drop of detergent to each container and mix. 

Use a different colour for each cup. 

Stir and let cool. 

Store covered in an airtight container.