So God created human beings in his own image. In the image of God he created them; male and female he created them. Genesis 1:27
Scripture tells us that God created us in HIS image. So if he is the creator of all, does it not follow that those created in his image would also create?
You are creative. So are the kids you are leading to Jesus. Not everyone is an artist, but everyone has creative gifts given to them by their heavenly father. So encouraging kids to explore their creativity as part of their spiritual growth will bring them closer to the one who gave it to them.
Creativity in the context of discipleship is about process, not results. Making something as a response to reading scripture, while talking about God, or while praying keeps us reflecting and listening to what God is telling us. It engages us...all of us...in experiencing him.