A system for marking objects using an electromagnetic marking device includes a first electromagnetic marking device, including a body having a top surface and a bottom surface. The body includes a first part having a through-hole in the first part, the through-hole having a first opening in the top surface of the body and a second opening in the bottom surface of the body, and a first member disposed within the through-hole, the first member including a first proximal end attached to the body and a first distal end not attached to the body. The body includes a second part attached to the first part. The electromagnetic marking device includes a signal generator attached to the second part, the signal generator further including a wave generator circuit and a wave modulator circuit.