When my mother hit 50, we organised some friends round, and sent them on a treasure hunt with her round the house and garden. We hid 50 presents for her, and everytime one of the crowd worked out a clue and found something, they all shrieked with delight like a gang of happy kids!! It was followed by a nice meal, and the delivery of a huge bouquet at 9.20 p.m. - the approximate time she was born. When everyone'd gone, my father presented her with a necklace, and we had some family snaps taken.