This one I found on shoebuy.com. It retails for about 89.95 with free shipping. The name of it is Luichiny Gettin Hitched. Isn't that cute? I love the bow, but worry the straps would actually start to rub my feet after a while.
Overstock has these sandals for $67.29 with 2.95 shipping. They look so delicate and light! I can definitely see myself wearing them, although the color might actually be a little too pinkish.
Nordstrom. They're the perfect shade of purple and seem to be a good height as well.