I've seen art quilts at several wonderful art shows and quilting shows that I've been to. So that started me wondering..

Do people create art afghans (knit or crochet)? Do people knit (or crochet) pieces and sew them all together in art quilt format? Since I'm still beginner-ish, I wondered if this is happening and if so, can someone share links or pics of these afghans?
Thanks in advance!!