Abstract: A tagging stick has a long, solid, rod-like, cylindrical body composed of resiliently flexible cellular foam material, such as polyurethane foam, being stiff enough to allow grasping and swinging by a human without bending but soft enough to permit striking objects and human bodies. The stick body has an exterior surface configured to form a plurality of pockets of air which, upon impact of the body against an object, cause compression of the air and production of loud popping sounds. Preferably, the body surface which defines the air pockets has an undulating configuration composed of alternating ridges and troughs with respect to a cross section along a longitudinal axis of the body.