Roominate is an open-ended toy designed to combine engineering, imagination an art. Your students will enjoy posting to the online gallery of project. Teachers may also want to see similar co-ed maker kits - Kit Hub and the Gallery of Awesomeness. These open-ended kits and toys might help a student show you something a test can't.
"Design Squad is a live action TV series and competition from PBS Kids where real kids compete in engineering challenges to win scholarship money. Design Squad offers an interactive website with games for 4th grade and up in engineering. All elements of Design Squad are standards aligned and perfect for both short afterschool interactions, as well as longer, assigned classroom projects.
The altruism element of engineering to help people and communities across the world strongly attracts young women disproportionate to their under 15% employment levels in engineering. One of my favorite studies can be found here about this phenomenon: http://eric.ed.gov/?id=EJ739038.