Did you know that i have made a Rouge the bat plush out of sewing materials?

In about 5 seconds of searching, I discovered that there was. Unfortunately, I suspect the follow up question will be where you can get one, and that's a much trickier question to answer. Your best bet is probably ebay, or you could try an anime/manga/weird stuff from Japan shop if you live in a large enough metropolitan area to have one of those.