I know that you just gotta have this swimsuit - Offered by Whitaker on ebay - I wish they gave more info in their descriptions, I'd realy be interested in knowing where this piece came from. I guess time and volume keeps them from adding more details.
You can see the catalog for their April 7th Auction Here
If you are in the Philadelphia area, or will be nearby there anytime from April 1st to May 21st, you might want to check out the Grace Kelly Wedding Gown exhibit -
It will feature her gown, veil, prayer book and her shoes which were made with a penny in the sole as part of an old Irish tradition. On the news they were also talking about the bride's maid gowns and hats, so I assume that they are part of the exhibit too, although I didn't see them mention on the museum's website.