http://www.vegas.cc/
. I believe I got the best deal there. Oh and when you_re their, you have to go to _Emeril_s_ for dinner one night, it_s so worth it!!!
There are wedding chapels all over Vegas, but I_m not sure that_s what you_re looking for on a Sunday (wink). So call the front desk when you_re their and they will find you a church.
Have fun!!!
And the shopping is great!
The buffets at almost all the hotels on the strip would be good enough to keep you full for the rest of the day.
During the day the Guineas museum, Elvis museum, exhibit at Mandalay Bay would be lots of fun. The rides on top of the stratosphere are scary.
Just check on any of the large hotel/casinos on the strip ... teens will not care for downtown so stick with the strip. You might consider Planet Hollywood .... might be better for a teen to enjoy herself. Just remember you must be 21 to stop walking in a casino. Can pass through but must not stop in the gambling area.
A really good show to go see is the Tournament of Kings at the Excalibur. It is about $50 each but it includes a dinner served with no eating utensils and a really great show. A lot of energy in this one and great for any age.
Have fun.