Both Flyred and Troutman have excellent suggestions. I tie my own 1/80 and smaller jigs and they do work great on Crappie. The other thing I would try are small streamers imitating minnows. I have also used small Roadrunners, but you have to use a heavier rod and I prefer my 3 wt for panfish. I am lucky enough to get to fish a place that has 15+ inch Crappie - what a blast on the 3 wt. Don't be afraid to use some bright colors.
Google up a fly called Crappie Candy.
To Miss Nancy - she hated fishing, but loved a fisherman.