Today we received a invitation to my cousins wedding in November, we really want to go problem being kids aren't invited and my almost 16 month old is still breastfeeding. He is only having 2-3 feeds a day and will not take a bottle - what are my options ?

I dont want to just wean him for the sake of being away for one night (would have to have the kids looked after so would be away for 24hrs at least). Could i maybe just start trying him with some milk in a cup and see how he goes? I dont know what to do