hmmm.. well for floral .. I'm partial to billowy flowers (like hydrangea, hyacinth, peonies).. but I'm not sure what is in season in Oct.. if you are using Disney Floral.. have no fear.. they are *amazing*.. you will be astounded at the flowers
As for GF honeymoon ideas.. I know you can have a private dinner on the beach set up.. this might be $$ but what a memory! or you could do it yourself and watch the water pageant..
don't forget to ask to ride in the front of the monorail!