I got my shoes from
www.shoebuy.com
free shipping, free returns, no tax...
I exchanged them a couple of times for size reasons.
Now, no one would have deterred me from my Cinderella glass slippers, but here is my advice to anyone considering them:
Vinyl does NOT give, so they will not stretch. You don't want to get the shoes too big, but if they are even slightly snug, your toes will be in pain for most of the evening if you do a lot of walking. I now know why most clear vinyl shoes are open toe.
I cannot stress enough how necessary it is to wear stockings. I wore sheer, white thigh-his. Vinyl does not breathe as well, so you will end up with sweaty, sticky feet (a lesson I learned from a different pair of clear shoes).
Put ball of foot inserts inside the shoe...it will help prevent blisters.
I'm not even sure if you are thinking cinderella shoes, but these are things to consider...
good luck in your search!
p.s. if you are in fact looking for clear shoes, let me know, because I searched for a very, very long time before I found mine...
whoops, I just reread your post and saw that you are looking for ivory sandals...sorry