Buy clothes that already resemble your cosplay. Do you really need a pattern for your cosplay? Sometimes you can buy garments that already look like the ones your characters are wearing. Beside above, when should I buy Halloween costumes? It can be made from either natural or synthetic fibers. You can send email to us : info@skycostume. Potentially, cosplay halloween costumes this option is very cheap but probably you won’t get an exact match.