Please allow me to assist. Here's a great one-shoulder dress from The Limited, $108:
Here's another original option from ASOS.com, $57 (down from $98):
Lulus.com is always a great place to find cheap dresses, and they have a few one-shoulder purple options to choose from. I'm partial to this romantic look, $35:
If you can help @BrittJ2003 out, please share your finds in the comments.