Sponsorship in various forms and merchandising would help. This is really all about marketing. You have a very good platform/project, how to raise awareness and participation is key. Unfortunately I am not an expert in marketing, and I also understand marketing request funds too. TV(eg. shark tank), site, merchant products, video, poster, flyer, etc. What I can do though is to continue to get part in this project and contribute, and also share the info with my friends. I know it's very minimal, but if everybody does the same, it could have powerful effect. Best