Have you checked the Evan map? I have no idea what you're talking about and I haven't played in forever, but I do remember that Evan's place had a lot of Ribbon Pigs.
If not there then maybe near Nautilus? I know for a fact that some piggies were there as well.
@helpingly: there is a new quest line, the rainbow mission. Daily you can choose one mission from a list of 6 (?) mission. Stuff like kill 500 montsr, harvest 50 times ANF find the Ribbon Pigs house.
When you try to find the Ribbons Pigs hpouse you get a clue. That clue is a small picture of a piece of a map. You must find out which map that is, on that map is the Ribbons Pig house.
However, i dont npw if everybody gets the same picture...