A few things with crappie on the ice.
1. In my experience, spikes/waxies will net you probably 80-90% gills, or bass. To focus primarily on crappie, tip with minnows or minnow heads/tails. Crappie minnows are perfect size for the tiny ice jigs. You'll get some bass mixed in, more than likely, but if you find crappies, this is the best way to keep the school under your hole and interested. Minnow/baitfish imitating plastics can do well, also, but the fish need to be very aggressive to hit an aggressively jigged plastic, in comparison to a small crappie minnow. The tiny 1" Gulp minnows may be worth it to try. I plan on trying them as soon as I have safe ice on my honey-hole again.
2. Crappies are going to almost always be in deeper water this time of year. You'll primarily find them in the deepest area of the lake, much of the time suspended off the bottom. Look for suspended fish on your flasher, as opposed to fish hugging the bottom, and odds are you found the crappie. I almost always try to find them in 10-20fow, and I look for the marks to be about 1/4 or 1/2 way up off the bottom.
3. If you can find a deep ledge adjacent to shallower water with a nice weedline, then you'll likely find the motherlode, and this is particularly true later in the morning.
4. Pre-sunrise I will focus on the deeper hole and target aggressive, suspended fish. As the sun comes up and it gets a little later in the morning, many of those same crappie will move up off the deep hole and onto the ledge/shallow weedbed/weedline to feed and find warmer water. Then I target them jigging just above the tops of the weeds.
5. I almost always use a small ice jig, in 1/32 or 1/64 oz, tipped with a minnow or soft plastic, or I use the smaller jigging spoons like forage minnows, kastmasters, etc. My preference is 1/32 or 1/25, or even 1/16 or so, for crappie. I will tip these with a minnow or minnow head, as well, or plastics.
Hope it helps! And the fact that I target primarily suspended fish doesn't mean that there aren't crappie down on the bottom. The last time I was out and targeting them, they mostly came off the bottom deep in the weeds, from what I recall. It's typically the more aggressive fish that are suspended, though, and that makes em easier to pluck out of the school. I've also noticed the suspended fish tend to be the bigger ones, also.