It's very hard to find a Rouge the Bat plush. They're so incredibly rare, it's almost impossible to fine one available anywhere. But luckily, sometimes Ebay has them. You just have to wait and watch for one to show up. Other than that, try Amazon or even one of your local flea markets. Although it's hard to find a Rouge plush, you might just luck into one.
Your best bet is on Ebay. Rouge plushes and Action Figures are extrememly rare, and another thing is if you find one on ebay, they're REAL expensive. But also check Amazon.com, Craigslist.com, and your local flea markets. You never know. But my best answer would be Ebay.
Great Eastern holds the patents and copyrights to make all Sonic themed plush toys. Rouge the Bat is available in an 11 inch size for about $15 on Amazon.
I would look at Sonic gear.org/store. Then click were it says plushes.
lita mitchell.com
internet or too cool www.animemate.com
to make blaze plush say blaze loves silver. to make rogue plush say rogue loves knuckles.
it's rare because it's only in japan and you have to win it out of a crane machine.
i do not know maybe ebay
You can create a costume of Rouge the bat.
Rouge is a large fruit bat.
Rouge was a white bat.
Rouge the bat is a Tomboy but she loves pink and purple.
Knuckles is often implied to have a crush on Rouge the Bat.
Noir the bat
Knuckles has a crush on rouge the bat.
http://sonic.wikia.com/wiki/Rouge is an English site about Rouge the Bat and all other things about the Sonic Series