I have very good luck with the Carter's Sculpin http://www.youtube.com/watch?v=Kxc3azavAv8 designed by Carter Nelson while he ran the fly fishing operation at Callaway Gardens here in Georgia. Tied in all black, it's great fro large bream. Tied in bright colors, it work's great for crappie. Jim Smith
I like this one also... It is easily tied, and incorporates a lot of color to catch the eye of the crappie.