Research in creativity often measures creative potential: the number of ideas which can be generated, or the way a novel thought appears in the mind of the thinker. There is much less emphasis on creative thought during the realization of this potential. This paper uses focused cognitive ethnography to explore how creativity is manifest in a complex environment. We report four main findings: that creativity involves a form of "knowing through doing," that creativity requires risk on different levels, that an embodied material sensitivity is required to make ideas appear in the world and that the form of the creative product is often unstable. We end with some reflections on the importance of detailed microgenetic work to expand our understanding of the embodied and responsive skills which are necessary for creativity.