I have a ball coming up and have this dress for it, however the short sleeves are making me a bit paranoid. I'm a little self-conscious about the top of my arms in pictures etc so just wondering what kind of coverup would look nice with this dress? I was thinking maybe a black big scarf/shawl thing I can wrap round my shoulders but not sure where I can find one of these cheap (I've spent a lot on hair and makeup and travel on the day). If not a shawl, any other ideas? Thanks for any help!