I was very fortunate to have "people who know people", to get outside evaluators for my most recent student projects. The projects were focused on Poetry standards (9th grade Language Arts), with student choice of technology. Many students chose 3D (Autodesk 3DS Max) development to show poetry, but many others chose music. I told them all they would be evaluated by industry professionals. We have a game company nearby (hirezstudios.com) to evaluate the 3D, but imagine the kids' excitement when we were blessed with Montell Jordan to evaluate the student-created songs! Here's a link to a picture and summary: http://cdat.lanierhs.org/cdatnews/atcdatthisishowwedoit
My lessons learned: ask around as even popular stars could be willing to help, AND tell the kids ahead of time because it makes them burn the midnight oil.