Video of Harry Potter author JK Rowling's commencement address at Harvard where she spoke about grappling with failure and overcoming it. I have found it very inspiring on multiple levels and address some key challenges of "being creative."
SAP has recently launched a new venture within (and without) its organization that it calls the AppHaus. It seems to be doing things way outside of SAP's typical business at a radically different scale.
I think you're right not to worry about that issue quite yet. And, there may be a way to take advantage of programs that already exist where kids or teenagers are already helping the elderly or people with disabilities (I recall doing that kind of thing with my local Jewish Community Center when I was younger).
Also, using already in place institutional structures will help insure quality. If going through a school, it might take a special after school program or some module in high school civics/social science education. But libraries, museums, community centers (e.g. YMCA, Boys and Girls Club) and other after school programs might provide a better venue.
It seems that there is room to bring together these concepts in some interesting way. As noted, physically going to the polling place and watching people vote can be a powerful learning experience as it contributes to people's identities as citizens. Playing an active role helping someone else vote could really add to this experience.