I heard a horror story of a bride that asked her uncle to let her dog out in between the ceremony & reception and after the reception at night. Great idea... until they get home the next day and see furniture chewed up and little gifts all over the house! The uncle forgot to put Fido back in his crate. Picture the scene in 'Meet The Parents' when they get home from the rehearsal dinner and find that Jinxy had put his 'finishing touches' on the wedding gown.
If you have never boarded your pet ask friends/family for recommendations, look online and do some research. Try to do this 1-2 months before the big day so you have time to tour the facilities, find a place you feel comfortable with, and take care of any required details such as required vaccines.
Matt dropped Rusty off the morning of the wedding. This worked for us. It may be easier to drop your pet off the day before the wedding. Brian, our best man, picked Rusty up Sunday morning after the wedding. Another perk of having a bridal party ;) I can't say it enough; everyone wants to help, you just have to ask them to help!
Woof Woof ..translation "I'm glad you're getting married, just make sure you make arrangements for me to play, sleep and make new friends at the puppy resort!"