This paper considers selected students’ cases in the classes of workshop sessions that turned out well-regarded products in community. It focuses on design processes of those cases and clarifies the conditions of projects which led into success cases. We use the phase of design processes which is classified into ‘think by sketching and choose one’ , ‘production’ and ‘refine’ . Then we analyze the two cases of most successful results among them, ‘Nekokaburi’ and ‘Tamago Bench’ . ‘Nekokaburi’ is a paper-made hat shaped like a cat’ s head. ‘Tamago Bench’ is a wooden bench shaped like an egg. The both projects have appropriate constraints and using an excellent “one-stop” design tool that our students can proceed with their works, with the result that the unique pieces were created. The combination of these two matters seems important for design education. The Installation in public places and the publication in newspapers particularly encouraged students to engage in working on their assignments.