New in town, Don't know anyone, how do I start a holiday ornament party.?

Just moved to a new city and I don't know anybody. Back home I used to attend an anual holiday ornament party. About 20 women got together once a year and brought a basket of homemade ornaments. The ornaments were judged, then each person passed out an ornament to each person there. End of the night we all had 20 differnt homemade ornaments for our tree. We also had food, drinks, gift excahnge, and games.....How do I find about 20 women in my area to participate if I start my own holiday ornament party. Ad in newspaper?