I'm hoping you mean an Alice in Wonderland costume, if so, and assuming you want to look like Alice rather than one of the other characters, all you need is a blue dress (long or short), one with a Victorian feel is best. With a short dress you should have white stockings or leggings, and black mary-jane shoes. For a long dress a Victorian style boot works best (white is preferable to black). You also need a white pinafore (apron). Optional touches are...a blonde wig (assuming you don't have blonde hair), and a blue or black head band or hair bow.
"Last year my Halloween costume was Alice in Wonderland."
that is an opinion.
Alice in Wonderland won the Oscar for Costume Design in 2010.
You can find Alice in Wonderland costumes at many stores that sell Halloween costumes. Or you can order it from the internet. Some stores that sell that costume are Party City, Walmart and Target.
See the links below:
It's Colleen Atwood.
Alice in Wonderland.
The character Johnny Depp plays in Alice in Wonderland, the Mad Hatter, would be a good costume with lots of face paint.
The person who wears blue costume is Taylor Swift
The best style of costume would be up to the person wearing the costume.
Alice's costume clothes can typically be found at costume shops, online retailers specializing in costumes, or at themed events or conventions where costumes are sold. Additionally, you may be able to find specific pieces for an Alice in Wonderland costume at retail stores that carry fantasy or fairy tale-inspired clothing.
It is Kuna tradition for woman to dress in a mola costume. The costume itself consists of a skirt, headscarf, bands for the arms and legs, and a nose and earring.