No purple dresses on black (so far), but these are some of the best sources for novelty prints. I may have to get some of that rain boots on black at J&O!!
http://www.jandofabrics.com/products...8&viewall=True
http://noveltyquiltfabric.com/kids_t...on_page_1.html
http://warmbiscuit.com/novelty-fabrics.html