My almost-2-year-old God daughter prayed for my friend with a tummy-ache, asking God to take the tummy ache away... it went something like this..
"Jesus.. tummy owie byebye"
Another time she was painting.. she prayed before she started...
"Jesus.. we paint.. amen"
Those are my most favorite prayers. I think they are God's favorite too.
"So anyone who becomes as humble as this little child is the greatest in the Kingdom of Heaven." Matthew 18:4 (NLT)