Any statue of a man with one hand held out before him at waist height can be photographed in profile in such a way that the extended hand looks like a big ole boner. And Soviet-era statues of Lenin have this posture in spades. Hence this collection on Lenin monuments sporting vast, steely commie-ons. (Famously, you can reproduce this effect with the famous "Partners" statue at Disneyland, which depicts Walt holding Mickey's hand; from the right angle, Mickey's nose becomes Walt's stiffy).
A Different Angle of View on Lenin Monuments (Thanks, Fipi Lele!)