Making a flyer wont cut it anymore. There are so many outlets such as the internet and out-of-home mediums that can help market your message. Various advertising methods such as web banners, mall/elevator/taxi advertising and billboards can spread the message and might even do a better job than radio and television.
One thing to consider is resources. Which outlets don't involve wasting a lot of natural resources besides energy. For one example, web banners are easy to initiate and even test one the campaign flight starts. You have also just eliminated printing anything. Another example, is out-of-home such as elevator marketing. It is being run on a network fed by satellites and again, not using resources.
Just some food for thought.