Some suggestions:

Topic of your choice to be approved by me
OR
My first kiss
The house of my dreams
My worst vacation ever
If I were invisible
My earliest memory
What I wanted to be when I grew up -- and {thirty} years later
The best gift I ever received
If I could go back in time
The best advice my mother (or father) gave me
If I could be an animal
What three things would I take with me if I knew I would be stranded on an island for a year
The most important thing I learned in school
The hardest part of being a kid
If I could talk to an animal, which one and what would we talk about

200-800 or so words. PM the essay to me or post it on this board which I oversee. I will approve your essay and post it.

Your readers wait with bated breath.