I did a bunch for this year already and posted them today. I'm including pics for some because I have them handy in my photobucket account.
Beaded ornaments, either drapes for standard Christmas balls, or things like snowflakes (this year I included a chain mail Celtic star focal)
Painted coasters and trivets, using stone or ceramic tiles (stone is my favourite because of the veining), and bakeable permanent paints. Blue cork or felt to the back.
Same technique can be used for doing things like mugs, flower pots, food canisters, etc
Crocheted ornaments or small things. I did Santa heads one year. I am doing stuffed snowmen heads, and reindeer heads as well this year. I also have done boob pillows for the guys one year, or stuffed toys (a chihuahua for the neighbours who have one, this year)
They really don't take long. I've done afghans too, but they can be labour intensive
Baked good gifts - loaves of sweet breads, cookies, candies. I also do jellies which can make lots of little pots, and aren't hard to do.
One year, I made packages of Gingerbread women for the men in our lives too - with 3D boobs, including a small candy dragee nipple on each - they got a laugh.
Painted mugs with a coaster, with packages of cider, hot chocolate, etc. I even did homemade peppermint, red and white swirled marshmallows one year to go in my mugs.
Jewelry - made beaded stuff before, but learned to do some chainmail this year, so will do more metal jewelry this year.
Also things like beaded bookmarks are nice and fast to make, cell phone dangles, keychains.
I forgot to add also glass etched items. Coasters, glasses, mirrors, food cannisters. One of my favourites was to take a plain picture frame, and etch along the outside, where the matte would be something, like fushia flowers on one that I remember doing. I did a plain glass frame with oak leaves to match a mirror I etched for the spare room. I also painted the matte too - for frames that come with a matte, paint the matte. I have multipic frames this year for family, and was going to do a tree theme on them as a play on family tree.