Used panties with real underwear

The postage trick of signing up to the used panty club has been around for a little while now and although embarrassing we've had to rethink to keep the postman on his toes......so now we have added so real panty (new and clean, your victims not that unlucky!) To hang out of the package.....explain that! 

(Please note this will not be a full pair of panties, this will be a section of underwear to hang out the edge to keep it realistic)