I'm getting married in a little over a month and am gonna have my taps mounted onto a large pumpkin. Not exactly the same but kinda the same principle. Since it is a fall theme, I will have Oktoberfest, pumpkin ale and a winter ale on tap.
other than her choice of beer, it could the best use of a pumpkin carving knife in a while. would be a neat novelty, if the pumpkin was large enough to hold enough beer.