Hello Nanci and thanks for bringing such a fun question to the Disney Parks Moms Panel.
Your darling little niece sure has sweet taste because the movie
Wreck-it Ralph is turbotastically great fun and I can definitely see why she's a super fan!
On your behalf I've done a little research and don't seem to be able to find any current
Character Experiences which feature Wreck-it Ralph, however be sure to double check right before your trip as schedules are always subject to change.
The most magical place to discover any & all Disney themed treats, toys and merchandise is at the
World of Disney store which is located at my all time favourite shopping spot -
Disney Springs.
World of Disney is the world's largest Disney character store and even if they don't happen to have any Wreck-it Ralph items currently in stock I'm sure you'll find something else to give you that sugar-rush shopping experience!
I know I haven't quite been a Fix-it Felix with your trip glitches today, but I'm quite your visit to Walt Disney World Resort will be magically high scoring.
Have a great Disney day.
~ Jane