Etsy is the place to find handmade green gifts for your family. I'm liking the melted green beer bottles soap dishes from MossyGroveGlass, but it may not be your style.
There are a lot of coffee lovers out there, and there are so many things that you can buy for them, starting with affordable to expensive coffee beans, from Blue Jamaican to Kopi Luwak. Another good idea would involve purchasing a nice coffee grinder with either a good-looking French press or a coffee siphon. Coffee siphons are pretty rare, I've actually known no one that had one, but easy to buy if you know what you are looking for.
Everyone seems to be obsessed about ebooks, but I stick with paper books. It's just more convenient and until there are better alternatives available, I'd rather buy books than ebooks. Since I'm a voracious reader, I love getting books as well. A good book to give this Christmas is the newly released Mark Twain autobiography, Autobiography of Mark Twain Vol. 1 (Amazon, $19.22), which will please a lot of dads.
5. Make Your Own
While some family members don't like gifts that you've made yourself, I like receiving them. Creating these takes a lot more time than just popping by a store and picking something up.