This is a fun & easy project for any kids. You just need 1 paper plate to make a fish, some paint (or something else to color it with), glue (or tape to attach the tail) and a googly eye (optional). My daughter wanted a glittery fish, so she sprinkled glitter on to the wet paint and it sticks pretty well.
This is just a picture of the basic supplies you need for this project.
I found that it is easiest if you have the child paint the paper plate first. Then allow to dry and cut out a triangle from one side to create the mouth and tape it to the back side to create a tail.
Your child may enjoy helping you tape the tail in to place, as well as glue a googly eye on.