heres a mod you will like i took alot of time making these so enjoy!
also you need img tool to do this and you need the whole game completed or a mod for all stores
what they look like go to these places:
http://www.youtube.com/watch?v=CluiqCQ22o0&feature=channel_page
http://www.youtube.com/watch?v=qq3dQdbFRlI&feature=channel_page
http://www.youtube.com/watch?v=BMhMUnbcXHg&feature=channel_page
http://www.youtube.com/watch?v=EX5w0l_9svU&feature=channel_page