I can get that... to a degree, the creativity goes. But at times, or at least in my experience, people who come to me asking for an item, they know what my style and quality of work is, therefore they've an idea what to expect. If you walk through step by step with people, there are no surprises on either end. And it always helps to get new ideas from other's requests.
i like customising EVERYTHING, not just clothes! Even my bed has sequins stuck on it and a painted headboard lol. But clothes are great to customize... although I don't usually start right from scratch.