Bagpipers are great for weddings. Traditionally used to mark the various stages of the big day, they add considerable pomp and ceremony to proceedings, visually and audibly. Your guests will be most impressed.
Some Suggestions for your wedding piper are;

* Pipe guests on arrival
* Pipe Bride & Groom from the service
* Pipe guests during the photographs
* (Pose in some photos if required)
* Pipe Groom and Best Man into position
* Pipe Bride down the aisle
* Pipe Bride & Groom back up the aisle
* Pipe Bridal Car as it leaves the ceremony
* Pipe the line up
* Pipe Bride and Groom to top table of the Wedding Breakfast
* Pipe an exit

I would recommend using a selection of the above to avoid overkill. I would be happy to talk through these option with you to ensure that the piping is tailored to your requirements.