The Wall Street journal reports on For Better or for Worse: When Marriage Vows Get Creative.
Sydney Anglicans has some good reflections here: I say ‘I won’t’ until they say ‘I will’
In my marriage preparation ministry at Holy Trinity Doncaster (about 15 or so couples per year) I’ve built most of the material around understanding, cherishing, and daily living out the marriage vows.
They shape the actual wedding service, and the relationship, and my counseling of married couples in crisis.
And no, we do not allow modifications to the vows!