AS everyone else has already said, you do need to provide some sort of background in order to prove that the project is worth it. You're still new here so unless you do so you are unlikely to find someone willing to help. As was suggested before, use some placeholders from Forge for a while. I don't get why you can't use Forge items, they can just act as placeholders until you've proven that your game is worth doing graphics for, and you can swap them out later. If you're worried about using them because you want to submit something professional to Kongregate etc, then don't worry, as the amount of time it takes to actually make a good game will be plenty to substitute everything in.