A manikin system is provided for testing product safety, and a method of making the manikin system is also provided. The manikin system includes a trunk portion and a plurality of body portions. The plurality of body portions includes a neck portion detachably connected to the trunk portion, a pair of arm portions detachably connected to the trunk portion, a hand portion detachably connected to each arm portion, a pair of leg portions detachably connected to the trunk portion, and a foot portion detachably connected to each leg portion. The body portions and trunk portion are formed of a bio-simulating material. Each of the body portions has selected characteristics and is removable and replaceable with another body portion having different characteristics. The manikin may provide accurate measurement of physical effects of hazardous conditions on a child and flexible and offer flexibility to change manikin test fixtures easily. The manikin may also accurately simulate the size, weight, a range of possible movement, and other physical characteristics of real children.