However, you can express the idea of creating in an adverbial way using phrases like:
* Creatively: This emphasizes the manner of creation.
* In a creative way: This is another way to emphasize the creative method.
* Originially: This emphasizes the uniqueness of the creation.
* Imaginatively: This emphasizes the use of imagination in the creation.
The best choice will depend on the specific context and the nuance you want to convey.