I'm pretty specific on guro; I don't care for dismemberment, decapitation and spilled entrails. I'm for a ryona-themed guro, so any traps or enemies would be focused on the skewering, mutilation, or destruction of breasts, or the female genitals and anus.
Traps can be more specific; spear or spike traps that go up, and target one hole or the other. Mobs can be ordered or trained for the same, as in making called shots for a cunt bust. This is a common ordeal or fate for many of my heroines.