Are you and your group of lovely ladies betting fans?
Then put on your best frock, a nice pair of (comfy!) heels and, if you're going glam, a fancy hat and head to the races!
Perhaps it's not the best idea if your bride-to-be is a the seriously competitive type, but a day at the races with a nice glass of fizz can make the perfect hen party - and if you're lucky you can win some extra dosh.
Channel your inner Eliza Doolittle for some serious championing of your horse.