Hello my friend! I'm back!
Sis and I took our own ponchos, and we did use them I hate to say.

But, when I saw all the people in those beautiful yellow ones with mickey on them I WANTED one!

I felt like a kid again! But the adult said "Spend your money on other things!"
Anyway, mom and dad forgot theirs, so sis and I bought one for each of them. I think it was $4.97, or there-abouts, tax included. I didn't pay over $5 for them.
Before we left, we were in a store called "Harmon's", in NJ, and they were selling them. Kinda like a discount beauty supply store. I don't know how much they were, but may be a store like that by you would have them!