My back deck gazebo does this fun thing when the sun shines on the snow. Icicles form, and the snow melts and slides over the edge.
When the balance is right, instead of breaking and falling off, the icicles curve inward. The changing angle changes where the dripping water re-freezes, and the icicles start to curve, like sabertooth tiger fangs.
When the angle changes enough, new icicles start to form form, but they point downwards, creating rows of dagger-like teeth.
It makes me think of Agrajag, the character from "Hitchhikers Guide" whose final form had so many mismatched teeth that it cut up its own face whenever it tried to talk.
My kids sumply say that the gazebo mimic is hungry.