Want a Save the Date on a small budget? Consider looking at Target or similar stores. I went to Target to the card section and found blank cards with flower petals and leaves imbedded in the paper. They are regularly 25 for $10 but I got these on sale for $5. I went home and found a save the date style I liked online and recreated it in publisher.
You can choose any font and color that you want to make it fit with your wedding. Print them off at home and have 100 custom save the dates for under $25.
I also found similar design in invitations at office supply stores that can be used as a matching wedding invitation to go along with the save the date.