As for my and Lillian, she wanted to go as a witch, but not a cute one. So, we went as the Wicked Witch of the West and Glinda the Good! I happened to have a Glinda costume that I found at Goodwill several years ago so the majority of my costume was ready to go! I simply made a crown using pink glitter craft foam and gems. I also made a wand by purchasing a pre-made wand and painting it pink and adding gems. I also bought a red wig to complete the look.
For Lillian, I purchased all of her costume and didn't actually make anything. But, I did paint her green. I purchased all of her items from Amazon.