If you haven't tugged on a Christmas Cracker you haven't lived. The silly joke, the equally silly hat, the Cracker-Jack-Style prize, they're great! And they're not just for Christmas anymore*. You can make them for parties of any variety, but I think crackers on New Years Eve with wishes/predictions for the new year would be a great fun. The tiny prizes could even be a bit more 'adult' for your adult party guests.