Speaking of tricks, try one I learned from my son, Austin; cover the shank of the hook with Berkley Power Wigglers or Crappie Nibbles, then tail hook a couple of wax worms or euro larvae for a very tempting presentation that Austin calls: "double power"!

This technique works well with verticle riding lures such as Northland’s Jiggle Bug or Lindy’s Frostee Jig.

Crappie will also hit noisy jigging spoons like the Lindy Rattl’r Spoon and Northland’s Buck-Shot Rattle Spoon in 1/16 to 1/4 ounce sizes.

The addition of a minnow head to the treble will increase the number of strikes. 

Since you can fish two lines, try dead sticking a small minnow on a single hook and fishing it close to the bottom. Dead sticking employs a very whippy rod placed in a holder. Watch for the tip to signal a strike, wait for the rod to slightly load up and then set the hook and reel them in.

Most of my largest crappies have come on a dead stick.

Ice Fishing Crappies-Crappie Lures