Hello Cindy and thanks so much for bringing such an important question to us here at the Disney Parks Moms Panel.
As a rather roly-poly sized person myself I can more than relate to other similarly Pooh sized Guests who like me sometimes have concerns about enjoying certain
Attractions at Walt Disney World Resort such as those which require a lap belt or similar safety restraint.
To the very best of my knowledge seat belt extensions for Attractions are not currently provided for Guest use at Walt Disney World Resort but as all Disney Cast Members are simply
Wild About Safety they can be consulted about any pertinent Attraction accessibility concerns upon entering the line at any given Attraction.
However I am more than delighted to share with you that all in my many yEars of visiting the Disney Theme Parks I've not once had difficulty boarding or have been unable to ride any Attraction although I must be honest and say that
Seven Dwarfs Mine Train and
Astro Orbiter are the 2 Attractions which I find the tightest squeeze for my extra fluffy size.
Wishing your whole family a pixie dusted upcoming visit to the magic of Walt Disney World Resort.
~ Jane