I am having a birthday party in a couple of weeks, it will be a joint party for both my children and i am on a very tight budget. We have free room hire so all i need to provide is the food. There will be between 40 and 50 children and i need to spend as little as possible. I cant afford to feed parents\siblings - am i expected to? There will be a bar so they will be able to get a drink though. Any tips or ideas most welcome.