An advanced slant on this is for not even the parents to know. The person who has scanned the baby lets the cake shop know what sex it's going to be, and the cake is then made, and the parents don't find out until the cake is cut.
Guests can apparently attend wearing pink or blue clothes, depending on what gender they think the baby is going to be, and there are pink and blue balloons, and baby-themed party games. There's no end to the fun.
But will it end there? I think the time will come when the baby can be conceived and developed in a laboratory, and then produced (out of a cake. Why not?) fully-formed. Even better, it could stay in the lab until it's potty-trained, or better still, fully-grown, with a university degree. A gender-cum-graduation party. I suggest a pink or blue cake, with a mortar board on top.
I can't wait.
