Hiya, Rosa!
Thank you so much for sending this
Disneyland Resort planning question to us hEAR at planDisney!
Oh, dear! I am so sorry that you're not feeling 100%! I think a Disney day will be the cure you need. (Well, that and your splint.) I'm very happy to say that yes, arm splints are no problem for a majority of the
attractions at The Happiest Place on Earth. Take a look at the
"Attractions and Entertainment" link here; at the top of the page, play around with the filters. Anything marked 'All Heights' or suitable for preschoolers should have no problems.
However, you might have to have a sit in Pooh's 'Thoughtful Spot' and really think about the
attractions that are a bit more thrilling, especially the water rides. You're more than welcome to cover your cast in a bag, and if you need any help in securing a restraint a Cast Member would love to offer that assistance. However, and mostly because I'm not sure exactly how your arm is to be pinned, if you have any doubts or questions, or if you need to keep your arm bent at an angle and you're concerned you might stick out of the ride vehicle, you can always ask the Cast Member perched out front at the attraction's initial entrance (before you officially get in line) and they can help you make the right judgment call.
I hope that this helped to clEAR up your question, Rosa, and that your injured party member feels better soon! Be sure to follow the
official planDisney Panel Instagram account where we're sharing all kinds of tips and tricks. And if you have any more
Disneyland Resort planning questions, We're All Ears!
~Kristen N.