The Crimson has apparently purged the photo from its online archive due to crybabies. Apparently, at Harvard, making a snow penis is a deliberate attempt to oppress women rather than the natural result of South-Park lovin' 18-20 year olds having access to lots of snow, which is no doubt what it would be at your ghetto state university. But obviously Harvard students are making a phallo-political statement rather than just being, well, kids.
I grew up in the deep south. I had only seen a minute amount of snow twice in my life by the time I turned 24. When we had a freakish snowstorm (about 5-7 inches of snow! whoa!) when I was in college in 1988 or 1989, it seemed like every other college student household had constructed a snow penis (or snow boobs, or snowmen getting busy with snow women) in the front yard. Man's urge to sculpt juvenile images from snow is part of Maslow's heirarchy of needs, I think.
Or at least, it should be.