This is a really cool idea. It could be done with any phrase or shape! Plus this article has other cute Disney things.
6 Snowflakes from Frozen movie machine embroidery by artapli, $3.99
Princess Anna Coronation Embroidery References by MomoKurumi on deviantART
Anna's coronation dress skirt tutorial
Elsa's shoes tutorial!
Elsa Coronation tutorial by demonic-black-cat.deviantart.com on @deviantART
Elsa cape tutorial
Elsa's Bodice Tutorial by katinka0921
Tutorial: How to make light-weight wings
Rumpelstiltskin Once Upon a Time Costume