Weddingbee boards

Greetings! 

  My name is Susan and I am getting married in April and have already designed our save the dates in illustrator (see below picture) The thing with the initials on it is a muslin bag that the save the date card will go into, im printing that on my gocco. But my problem is that i need advice on how to print the 2sided card that will go in it. I really want to achieve that "vintage" "distressed" look. Can anyone offer me any advice on how to go about that??