That's a bronze cast of a pig's leg there in the stroller. According to Luhring Augustine Gallery, in Baby Püppi, the late German artist Martin Kippenberger was acknowledging that his work, not kids, would be his legacy. To me, the stroller mostly says "1988!"
Baby Püppi, 1988, Martin Kippenberger, in "The Irreverent Object" at Luhring Augustine through Dec. 19 [luhringaugustine.com via dt reader paddy]
A pig's leg? If pigs were built like that, we wouldn't eat them -- it's all bones. I thought it was an attenuated poo until I got to the description.