Most of us tend to associate masturbatory activities with the genitals, though a few of us may also think of such bodily parts as the nipples or anus.
It is curious that the antlers of deer are also an extremely effective masturbatory tool. It appears that during the rutting season - generally between September and October - the hardened antlers constitute a highly sensitive erotic zone. Darling has been quoted ("A Herd of Red Deer") masturbation "is accomplished by lowering the head and gently drawing the tips of the antlers to and fro through the herbage. Erection and extrusion of the penis from the sheath follow in five to seven seconds ... Ejaculation follows about five seconds after the penis is erected ... These antlers, used now so delicately, may within a few minutes be used with all the body's force behind them to clash with the antlers of another stag."