Bucket Brigade on KY lake
Some of the crappie guides down on KY lake take 5 gallon plastic buckets and load them up with gravel from the shoreline of the lake. Then they lower the buckets full of gravel down to the lake bottom in select spots. Those buckets sit on the lake bottom and grow algae on them. The crapie think they are stumps.
If your lake is lacking in wood cover and barren then this setup may work well.
If not then stick some 2 by 2 about 4ft long inside the buckets and add some Quickcrete to the bucket and put about 10 of those out in one spot. Put ten buckets in a few more spots and you have yourself some crappie honey holes.
Picking the spot to put them on the lake is the hard part. Nice spots are points and the inside bends of an old creek channel dropoff.