Free: Contests & Raffles.
Be careful with apples, you might end up getting a lot of predators.
I don't know how well they work for blacktails but the trophy rock works great for whitetails in Stevens county. Sunday afternoon I had 4 different bucks an 5 does (or small spike bucks....could have been both ) come in to one I put out last year. They can go through them pretty fast but once they know they are there just keep them replenished and they will keep coming back.
[ ]Are those trophy rocks scented, and how long did it take before you started getting activity on it?