Gloop is an easy-to-make play goo that can be both solid and liquid.
How to make:
Put 1 cup of cornstarch in a bowl
Add 1-2 drops of food colouring to 1/2 a cup of water
Stir!
Cleaning: Although this is messy stuff, it does wash off with warm soapy water. Warning- do not throw it down the sink! Gloop will keep for quite a few days in an airtight container.
