Hi Wendellyn!!
Thanks for your question and for visiting the Disney Parks Moms Panel!
How AWESOME that you are able to experience your grandchildren's FIRST visit to
Walt Disney World with them!! It is sure to be an amazingly memorable experience!! It'll be a whole new experience for you to see it through their amazed eyes, I'm sure.
One of the cool little "freebies" available at Walt Disney World is the celebration buttons. Whether for "My First Visit" or "Happy Birthday" or "Just Married", buttons can be found either at your resort during check-in or at
Guest Services inside any of the
Disney Theme Parks. I always preferred getting ours directly from City Hall at
Magic Kingdom, but that's a personal choice and made my girls feel just a little extra special getting them there.
I hope this helps and I wish you all the most Magical, memorable trip!!
Chris