Hailey,
That is a great idea! I am at the resort from June 3rd-10th.
I have talked to the wedding coordinator on the phone multiple times. There are specific bouquets and cakes to choose from. (she has a bunch of pictures). I told her I wasn't good with any of the cakes in the picture, so she said just to make sure I bring a picture of what I want with me, as long as it is reasonable she will get it made. And the same with the flowers, although there were truly tons to choose from.
I am bringing things for my centerpieces, just in case. My girlfriend got married in Mexico 2 years ago, and when she arrived she met with the wedding coordinator, and went over every detail. Everything went really well. I'm also a "type A", but we have to try to not worry ourselves with the small details....it will be beautiful no matter what. My TA said the main thing to be a destination bride, is to be flexible. I have less than 60 days as well, and I am extremely excited. This Saturday is my bridal shower, and my MOH has rented a wine bar for the afternoon, it should be fun!
Let the festivities begin!!