I came across these photos for a Country Garden theme. I love the idea of using flower seed packages as part of the place setting. You could glue a tiny label with your guest's name on them. They have tiny silk floral stickers that you can stick on the name tag as well (pick them up at any craft store). That would definitely be a conversational piece.
I have a ton of table linens (an entire closet full). I found that the best price for a country or Shabby Chic type of table cloth can be purchased at Target. They usually have a sale every so often and I've picked up a few beautiful floral table linens at a low cost.