What else can I do to rough it up?
Got a dog? You could let them have at it, but keep an eye on it to be sure they don't eat the pompom. These things are pretty sturdy, though. I've found my six-year-old swinging around ones that were destined to be shipped to customers, and you couldn't tell a darned bit of difference.
If you're making another, you could try going up a needle size for looser stitches. It might not be quite as warm, and you'd want to cast on fewer stitches, but if you also tried to keep your tension uneven it might help it look more rustic. And by "rustic" I mean "crappy." And by "crappy" I mean "Jayne-like."
And yeah, I definitely get notified via e-mail when someone responds. This thread is great.