Give out rewards, awards, trophies, plaques, print announcements in your local news-paper or your parks or recreation department newsletter. It is a proven fact that creative people given the chance to be more creative are happier and more effectively productive. After you reach 100 with a few everyday objects begin working on work-related objects just for fun first until you can reach 100 easily then begin applying your knew fluency to every day work situations or problems. Practise Flexibility during meetings once a week or month by listing 50 totally different kinds of uses for everyday objects. Then move on to work related challenges.
Creativeness is one ability that knows no limit.