I have many open ended materials available to and to encourage children with all possibilities. The children’s minds are open to all possibilities and I provide as much open ended material including blocks, recycled material, tubes, and many loose parts ect. There is a sand box also available for creativity. I scaffold to certain levels showing support by giving verbal cues or asking simple questions.
The divergent thinking concept (we all have) allows the creativity to flow, unfortunately it does deteriorates with age. I, as a provider, also play.