This may be of interest to you. A customer of mine has two tickets in a corporate box for England v Ireland 17th Mar. He paid £300 each, but he didn't realise when he bought them months ago that it was going to be the same day as his wedding. If you are interested, he is looking for someone to take his place.
It's at Mary Street Registry Office, at 4.30pm. The bride's name is Nicola -- she's 5'4", about 8 stone, quite pretty, has her own income and is a really good cook.