I attended a wedding last summer where the couple added a nice twist to the ceremony. They made time so that both the bride's father and the groom's father could give a short speech. I had not seen that before and it was very touching.
Normally the officiant does most of the talking and you only hear a few words from the bride and groom. Letting both fathers stand by the couple and share their wisdom and encouragement was really nice.
I know there is time made at the reception for the parents and other loved ones to speak but sometimes there are guests who cannot attend both the ceremony and the reception. Also, having the fathers speak right before the vows made the moment more special and meaningful.
There are several non-negotiables when it comes to planning a wedding ceremony and certain things you legally have to include but there is still lots of opportunity to make it your own and do something unique. You do not need to take away from the sacredness of the ceremony but you can certainly be creative and add things no one else has done before.