I have some some I think are Large mouth Bass. I will have some leftover after I do my son's quilt. I haven't seen any Walleye, but I'm not sure I'd recognize one if I did see it.
http://www.quiltingboard.com/t-150584-1.htm Heather has some here for much less than I paid for mine.
I really like the fish panel on Favorite Fabrics' site.