Simple Android Application

We are looking for a freelancer to create a very simple app for the android market. The application will consist of a static background and 23 symbols on it (which we will provide). The user can move these symbols separately to a new position using a drag-and-drop method. After the project, we have to be owner of the source code to be able to do future updates. Please only bid if you can show some previous Android projects you've made before.