In your book were written all the days that were formed for me, when none of them as yet existed.
Building on the other activities so far, speak to the children about how God knows all about them and, that even before they were born, He had plans for them.
Show the children some maps of the local area, road maps, globes etc and talk about the journeys we go on in life and how we sometimes end up in places we'd never imagined we would be. Spend time exploring the maps!
Speak about the children's hopes and dreams for the future including where they would like to travel to and help them to pray that God will show them what His plans for their life are.
As a symbol that they are trusting God to show them the way, let the children draw their initial letter on an old map (or a print out from the computer!). Get the children then to cut the letter out out so that they can pin it somewhere as a reminder of God's plans for them.