Ok first off I got to say this is totally not condoned by anyone on the Windower team. I've decided to release this since over 10k medals have already been released into the wild on Asura in the last 24h~ for stupidly low prices.
Just make a folder inside your addons named superduper then place the superduper.lua provided in the link into it.
Once you load it up go stand within 6 yalms of the Aurix ??? marks in Ru'Lude Gardens.
//sd dupe beast - setup to dupe Beastmen's Medals
//sd dupe kindred - setup to dupe Kindred Medals
//sd on to start the duping. It will auto stop once your inventory is full.
//sd off - If for some reason you want to manually stop it.
superduper.lua