I love the celtic hand fastening ceremony. Usually it involves tying the couple's hands together (you can also incorporate a special handkerchief or fabric from the mother of the bride's wedding gown, etc. if desired) and have someone special read the following:
These are the hands that will work alongside yours, and build your first home and plant your first garden.
These are the hands that will passionately love you and cherish you through the years,
And with the slightest touch, will comfort you like no other.
These are the hands that will hold you when fear or grief fills your mind.
These are the hands that will, countless times, wipe the tears from your eyes; tears of sorrow, and tears of joy.
These are the hands that will hold your first child.
These are the hands that will help you hold your family as one.
These are the hands that will give you strength when you need it.
And lastly; these are the hands that even when wrinkled and aged, will still be reaching for yours,
Still giving you the same unspoken tenderness with just a touch.