I think you guys just solved a little potential jealousy issue I was afraid of.
We are going the day after my older dd turns 9. Younger dd won't be 6 for another 3 mos so I told her that Older DD will get to have Happy Birthday sung to her there, but not younger.
Maybe I will have older DD celebrate her bday the first day in Disney and younger DD get to wear the pin the last day of our trip. That should be ok. Now, to convince dh...
Nora