Does anyone crochet rag rugs?

Ok, I have to ask, what is a crochet rag rug? Do you have a link to where I can find them or find a tutorial of how to make them. I have never heard of them, obviously. But am intriqued. I will have to search the internet and see what it is.

This is something I'd like to start doing this year. I've gathered together a huge pile of fabric scraps and bought myself a hook, but not got any further yet. I think I need to get some mesh stuff to practice on, then I'll think about some designs. I fancied something in shades of blue as I've rather allot of blue fabric. I too would love to see photos if anyone has any completed projects.

I have never made one, I am not even sure how they look. Have you check Etsy.com to see if anyone sells those there.