I have 4 coal. I also picked up a copy of Defence Grid that I don't really want. I've posted on the OWF Facebook group about it, but no one's claimed it.
It'll go to the first person to PM me.
EDIT: Defence Grid has been gifted to an rl friend. Sorry, guys.
Out of crafting my precious coal, I got a -50% coupon for the Frozenbyte Collection (the Shadowground games and Trine). I'm willing to trade if anyone's interested. I also have a coupon for Airline Tycoon, but I'm not very optimistic about its trade value.
Crafting coal doesn't give you any better presents than the achievements. That means that you'll probably get something really shit. It's definitely not worth it.
Everyone with an appreciation for 3D shooters NEEDS to get both Bioshocks.
EDIT: Also reading what people are saying about this whole Steam coupons for achievements thing they've got going on makes me glad I haven't bothered with it. Still, "Free" stuff though. If you don't count the effort and time spent getting the achievements.
I'd rather craft the coal than keep it because, face it, there are millions of other people in the same raffle as you are, the chances that you'll win are extremely low.