My son is about to turn 18, and is having a house party. We ( and a couple of other adults ) will be in the house at all times, and he has asked us to provide the food ( sausages and burgers ) and nothing else. He has had a few small parties before ( 40 kids ) , and they have been really good fun in the past. , This time, as he is 18, I would like to do something a little special / different for him. I looked into a bouncy castle but they do not mix well with alcohol, and I am realistic that there will be drink available. He is a good kid, working really hard for his A levels, obviously as for everyone else money is very tight and the budget is small, so I wondered if anyone had any suggestions