Catherine, Duchess Of Cambridge's Sarah Burton wedding gown and her sister Pippa's maid of honor outfit have already been copied and will be available to royal wannabes in American stores later this year.
 
IS Collections seamstresses worked tirelessly through the weekend after scrutinizing the Middleton siblings' royal wedding day outfits on Friday.
 
The bridal gown knock-off is already available to order via Nordstrom.com and it will hit stores in September.
 
Pippa's dress will be recreated for budget store Dillards, where it will retail for $220.

Click Here For More Kate Middleton Pictures