Draw an icicle?

Its wintertime, so I imagine lots of people might be needing to draw icicles.  I can find free icicle fonts, but - I need to draw icicles hanging off a logo.  I can get the shape of an icicle, using a three point curve tool, and then closing the curve for a symmetrical icicle, then if I wanted some randomness to the edges to make it more "cartoony" I can use the repel tool to push in the sides.

But - I just don't have that knack for the finishing touches.  I have looked online for illustration tutorials, but can find any, even for AI - just vector downloads.  Nothing even in the galleries here.

So - any ideas?

 

PS, any ideas for simple snow on top of the logo would be cool also!