Perhaps a general hardware-clothing store will have it near you. The local Dennis & Co. around here in the peninsula has RIT dye and things. I'm not sure what they have completely, cause I've never actually looked for fabric type stuff... but Dennis & Co. usually sells toys, construction, pet stuff (like cages), some appliances & there's a clothing section too... Lots of misc stuff- basically it's like a mini Freddy without being a Freddy xD;
Anyway, I'm debating doing Daisuke or Soul, either of which do need red pants that fit- so I'm off to Dennis (it's about 30min closer than JoAnn) to see if they have RIT Dye remover. The clerk I called said yes they have it, so I'm off to see what else.
Great job on the mask so far Nikki~ ^_^ Maybe some blue or white or metallic feathers would look cool. Wow that could almost work for Kuja lol XD