Hey, Erika! I so want to see this outfit! I'm the worst when it comes to Disney bounding, and I love seeing other guests who have crushed it with their Disney Bound outfits.
Without seeing the boots, it would be really unfair for me to tell you whether or not they would be allowed into the park. There is a
list of restricted personal items, and while there is nothing on the list that specifically says "high heel boots with decorative spikes," I feel like some boots that fit this description could fit into the restricted category.
If the spikes are of a nature that the shoes could be perceived as a weapon of some kind, they definitely would not be permitted. I also think if the spikes are long enough, projecting far enough out of the boots, they could pose a hazard to other theme park guests. Don't forget,
Walt Disney World has a lot of pint sized princes and princesses walking around, and many of them are going to be at the same height as your spikes. This could pose a definite safety risk for the little mouseketeers.
My best suggestion would be to try if you want to, but be prepared with a back up plan. Have alternative shoes in the car, or be flexible in having to go back to your resort to bring the boots back.
Thanks for your question, Erika!
Anna