Here are some options:
General:
* Creatively: This is the most direct option, but it can be a bit bland.
* Imaginatively: This emphasizes the use of imagination.
* Originially: This highlights the newness and uniqueness of the creation.
* Resourcefully: This focuses on the clever use of available resources.
More specific:
* Artistically: If the creativity is expressed through art.
* Innovatively: If the creativity leads to new ideas or methods.
* Ingenuously: If the creativity is clever and inventive.
* Prolifically: If the creativity results in a large quantity of work.
Ultimately, the best adverb will depend on the specific context and what you want to communicate.