Onozuka treats his design process as an experiment in a three-dimensional art form, with functionality one among several goals. He finds his inspirations from things he sees and feels through his travels, books and art. What he most cherishes in the creation of his collection is the process itself, and the development and evolution that come along with it. Onozuka likens making a collection to having a small organic farm, where one has to oversee every harvest with care and attention to detail.