First Problem

So i ran into a problem with my new project! I was starting to take part the small cushion on the couch and unzipped the zipper. Inside was not a foam piece- it was just a mass of shredded foam! No wonder the cushion was so uncomfortable! Now I don't quite know what to do! How would I make a new cushion cover without a cushion form? I will send a pic as soon as my camera recharges! Send your ideas, if you have any!