What do actual air traffic controllers use to practice actual air traffic control? Toys, naturally.
My wife and I picked up a recently discarded and gently used table. We painted it up with some leftover paint, then mutually decided something had to be drawn on it. Since our "skillz of an artist" are somewhat lacking, I suggested we make a replica of my old practice ATC table - a ruler and some masking tape, we'll be just fine!