All you needs is a: Styrofoam cup, potting soil, grass seeds (You can buy a small pkg. at Wal-Mart for a couple of dollars.) and a permanent marker
Have your child design a face on the outside of the cup. It is fun to make all sorts of funny and scary faces! Next, fill your cup with potting soil. You can fill your cup up to about and 1 inch to 1/2 inch from the top. Next spread your grass seeds on top of the potting soil. Mix them into the soil. (You will not want to bury the seeds deep into the soil.) Water your grass when dry and in a week or so...you will have a funny looking character!
The kids favorite part is getting to cut the hair! Depending on the age of your child, you might want to assist them in "cutting" the grass. I have seen some fun and crazy designs! Let your child cut away and be as creative as they like!
The fun thing is that in a couple of days it will grow back and the plant is ready for a NEW hair design!