Listening to children pray is one of life's greater pleasures.
My youngest, Kimmie is very thankful in her prayers. She always makes it a point to thank Heavenly Father for everyone in our family (as of late, this occurs multiple times in the same prayer...) and then commences with speaking in tongues. Some sort of ultra-cool jibberish starts flowing from her mouth for a few seconds and then a pause, a sly grin, and then more thanking for family members. I don't know if she's just trying to emulate mommy and daddy's long-winded and boring-for-kids prayers, but whatever it is, it rocks.
Mandi, my second oldest who caught on to our prayers for protection started a tradition in the children's prayers to say, "Please keep us safe from harm and accident (and purposes)..."
Yes, the prayer of the children is glorious to be a part of. Most of the time they end up sounding like vain repetition, but kids are innocent and have no clue what that even means; so I'm convinced they really mean it everyday... that is until they're saying that same prayer so fast it sounds like they're speaking in tongues as well. Maybe that's where Kimmie gets it from.
The best is, those quiet moments during family prayer, when you know they really have some concerns on their mind; they pause for a moment during their prayer and then ask for something completely unexpected that touches your heart for good. It's those moments where you feel the Spirit touch your soul, and you know that Heavenly Father is hearing them.
Thank God for kids... (you never know, next time you're trying to have one, He'll give you an added bonus like He has with us!)