My fiance and I are paying for our own wedding, and the rehearsal dinner. We'd perfer to have someone cook a big meal, but no one has a house/yard big enough to host a party. So, we're going to a local beach-side bar & grill near the ceremony location for the dinner. The prices are VERY reasonable, and the menu has a wide variety of food.
We currently wish to invite only the people in the wedding party, the coordinator, and my parents. My sisters are in the wedding, and my fiance's friends and nephew are the groomsmen. We are going for a more casual approach, so it just seems like a night out. We don't mind if the groomsmen bring a guest, but we don't have it in our budget to pay for meals for any extra guests. What is a polite way to say that 'only guests in the wedding party are invited, and their spouses, but we will not be paying for their meals. And the first drink is on us"? We don't want to seem rude, or make it seem like we are being selective, but we just can't afford to do anything big--we'll leave that for the reception.
Any Suggestions?