More people own cameras than radios, and photography is the fastest growing hobby in the world.
You don't have to have one of the popular, more expensive video cameras either, or a lot of high priced attachments and equipment. The only special piece of extra equipment you may want to invest in would be a tripod for mounting the video camera in certain situations. One of the easiest ideas is to visit a children's clothing store in one of your busy shopping centers, or the children's department in one of your large department stores. Sell the manager or store owner on the idea of your setting up in a corner of the store or department, and taking videos of the shoppers' children. You'll need a sheet or a plain piece of material, or some sort of imaginative set for a background.