In todays time the ammi (the grinder stone) is out of use, people find this as an antic and just bring this in for the wedding and today men are without ego, if you ask them to fall on the legs and beg for mercy they might do it..lol. So i guess its time that this is scrapped.
This star gazing is another bluffing now a days, most wedding happen in broad day lights and how are they expected to see the star, instead groom shows the bride there is the star and the groom acknowledges, it has become the first fooling exercise man undertakes in his new innings.
Next is the ritual where in some weddings groom and bride throw rice grain and flowers at each other and pour it on others head. This I think was a ritual which was introduced back then since the marriages were underage where the bride and groom were really small and to keep them occupied they were allowed to do this. But then continuing this in the modern age, instead of wasting the rice and flowers, we could probably give them each a mobile and allow them to text to each other or give access to facebook at the manawarai and allow them to use an application to send flowers to each other or put up a giant screen and allow them to play barn buddy with the crowd. :D