Find .chr file on Internet

Hello, maybe this is a dump question, I'm developing a demo on NES and i can't draw, so there is a way to find the .chr file of other Nes Games on Internet? Or, there is a way to rip the .chr from an rom? I'm using YY CHR, but I can't change the language in english, so I don't know if this tool can do something to rip the .chr file.

Thanks!

You're in luck, see this thread about this tool just released yesterday that can extract CHR from a rom.