Three of my personal favorites that I use most in my own life are:
The verse I often pray for Max is
I know that God has big plans for Max P. Ramsey and I just pray that he will grow to know Jesus as Lord and be able to have the hope and future that God has for him!
"Delight yourself in the LORD and he will give you the desires of your heart."
Since as of right now Sophie is my only little girl I love this verse for her because I feel like the essence of being a little girl is having a heart full of desires for your future. I just pray that she will delight herself in Jesus so that she can have the desires of her heart fulfilled!
and Jack's is
"The LORD your God is with you, he is mighty to save. He will take great delight in you, he will quiet you with his love, he will rejoice over you with singing."
Jack is my first child that has had a "life verse" from me before he was even born. But, this verse was on a website I was looking at one day and immediately our sweet boy who I haven't even seen yet came to mind with this one. Even though he isn't in our arms physically yet I know that God is already in love with him and rejoicing over him. I pray that he will feel that throughout his life!