Podcasting With Still Images?

Is this possible? Our local Humane Society/Animal Shelter is having a real problem with overpopulation, and our goals are to promote spaying and neutering as well as adopting.

We have a webpage, and I am familiar with the audio method of podcasting, but I was wondering if we could attach images of the animals we would like adopted to the audio in synch, and how this would be best accomplished?