Cheap, easy and creepy Japanese Halloween designs

Kakurenbo - or Hide and Seek to Western audiences, is a mainstay on Halloween for the Cartoon Network and rightly so - it's one of the very few authentic horror anime productions ever made. It's about a group of kids in neko (cat masks, usually found in traditional Noh theatre), trussed up in post-modern Road Warrior yukata (summer robe) playing hide and seek (sort of) against wooden, mechanical demons. To lose means to sacrifice your soul to the game (surprise, surprise).

More on it: http://www.animefringe.com/magazine/2005/10/feature/01.php

To throw these costumes together would most likely have to require visiting a Japanese curio shop, most major cities having one. Picking up a yukata would usually be easy. They are usually long but the hemline can be cut. The mask may be tougher, as usually such masks are pre-painted. You may consider doing it the ole paper-mache style if you have the time and inclination. The wigs can be crafted fairly easily enough from regular black straight-hair wigs with enough hair spray or sugar-water does the trick. A dreadlocked wig could also work. The twin brothers' red eyes can be accomplished with some theatrical contact lenses.