interactive water dispenser

Hi all,
I am a student of Industrial Design at the Indian Institute of technology, New Delhi. I am doing a project regarding design of a water purifier cum filtration unit that will enhance the visual value of filtration as a process and shall be used to convey the brand image of the company (sponsors). The product shall be installed in shopping malls/bowling alleys.Also, it should be interactive in the sense that though the water dispensation shall be free of cost, the experience of using it should be registered in the mind of th user so that the company and the product, bboth, are benefritted through mouth to mouth publicity too. Could any body give me some clues regarding how I can make the 'first visual contact 'that the passer by makes a fascinating experience? Please give me some links that coyuld be helpful, for example, has anybody seen Mr. Orange’s fruit juicer installation!