A 10 bag and a pack of rizla, righteous dude.
Books generally make good stocking fillers, find out what books they like and buy them a good book in that genre. With these days of online reviews and recommendations it's so easy to buy people books they will like.
Or CD's, DVD's etc.
Or there's the old "double ended *****" ruse, give your mate a big black double ender in a box for a DVD player or something, he opens it in front of his family, hilarity ensues.