A few years ago I used to be in the direct sales business....selling candles...I won't say the name....but this one girl got about 7 other consultants in other direct sales businesses and we had an open house at her house. We made a post card with the open house date and who was going to be there, each of us sent that post card to everyone in our contact list and even gave some away. We set up posters around town and had a GREAT day! There was a guest book at the door and all of us shared the people on the guest list. We also donated something to put in a huge basket and had a raffle. What a great turn out!
Good luck with starting an Open House and getting your business started.