The poster who mentioned the guitar fan, we bought FIL last year a gadget from iwantoneofthose that cuts plectrums from just about any scrap you have lying around, so you'll never be caught without a plec. Not hugely useful, admittedly, but a fun novelty gift.
DH is getting clothes (he likes nice clothes but hates clothes shopping), an RPG book (out of print, so a treasure hunt for me to find a copy less than £80+), a Milton Jones DVD, a sock snowman, a desk calendar of LO for work, a fancy cheese knife (he loves his cheese! lol), a bottle of this really nice ginger beer he's taken a liking to, and some chocolates.
My Dad is impossible. I've been asking him for a while what he wants and no answer. His birthday is early January too.
My Father is getting a book on funny quotes from various kings and queens (spotted in the Works a couple of weeks ago) and I don't know what else.
FIL may well get an oil pastel portrait of one of his dogs - he loved the one we got him before of another of them. Expensive though, so we need to get someone else to go in with us on it, and gain SMIL's co-operation in sending photos the artist can work from (she's v hard to get hold of).