Interesting seeing vulgar tendencies taking a different bent with the reversal, even in the normally innocent snow. I don't think I've ever seen a snow dick, myself, so that's honestly something new and unfamiliar... but I've seen fiction that had boys drawing penises on shit, or the dreaded 'penis monsters' created in things like Spore because some guys just never fucking grow up.
Honestly, when you seriously think about that shit... it kinda feels homosexual to focus so god damn much on your own equipment like that. The kids suggesting making the entrance look like a vagina... what, you want to make believe you're entering a woman as a little girl? That's like a guy jumping on top of a penis sculpture and imagining he's riding a real one. Doesn't sound very heterosexual to me. Not that I have a problem with anyone being homosexual, but my point stands.
Nobody seems to think about the implications of this sort of vulgarity, they just do it because ... something. I never understood it, anyway.