Don't worry 
Because I've compiled a list of ideas for you!
I know, you love me now
***Disclaimer: The specific items I listed are things that I own, use and love. I'm not benefiting in any way from promoting these items/products/subscriptions.
Small gifts
Poker tracking app
This is a great gift for a live poker player. There are a few to choose from, but the app I use is Poker Journal. It's simple, intuitive, and professional. - Price: $12.99
Screen shots from the iTunes store:
Plastic Cards
Plastic cards are much more expenseive than paper because they are durable. They are water proof and can be washed in the dishwasher! Also, the smooth surface makes the cards slide nicely on felt. Copags are a good choice, but I like the feel of (Kem) cards a bit better. - Price: $28
Poker Book
There are books now for every kind of player and variation of poker -- tournaments, cash games, mixed games, you name it. But, if there is one book that I think every poker player can learn from, it's (Mental Game of Poker). Price: $20 (paperback)
Big Gifts
Headphones
Let's be serious, poker players or not, everyone wants a pair of headphones, right? There are so many different kinds, (buds, over-the-ear, noise-cancelling, etc), but my favorite are the (Bose MIE2i). They are somewhat noise cancelling, but I can still hear the action at the table if I need to. I love the in-ear design because I can wear them for hours with absolute comfort. Also, if someone calls, I can answer the phone easily with the a press of a button. For those who don't have iPhones, there is another Bose earbuds variation - Price $116
Smart Tablet
Ok I don't have this one, but it's on MY list!
iPad Mini - Price: $329-$659
Gifts that keep on giving
Subscription to Music
Since players spend hours on end grinding, music makes great company. Pandora is free, but you can pay for a subscription to skip commercials. I would suggest (Spotify). If you aren't familiar, it is a digital music service that gives you access to millions of songs (pretty much anything mainstream). You can stream or download on any kind of device (there is a free version with ads but you can only use it on a desktop or laptop) - Price: $9.99/month
Audible Account
Instead of listening to music while grinding, an audiobook is also a great choice! Audible has a huge selection of audiobooks, and if you consume more than one a month, a subscription is the way to go. For $14.95/month, you get one credit which gets you one audiobook (average price per book without a subscription is around $23). Your credits never go bad and if you run out, you get discounted prices.
Subscription to a Training Site
Poker players need to constantly improve in order to stay on top of their game. Training sites are a great way to do that. CardRunners and LeggoPoker both have superb content and supportive communities, but I guess I'm a little partial to (Deuces Cracked) because the two video series I got to do with DC coach Andrew Seidman called Coaching Kristy. 
That's all I can think of for now! I hope this helps 
Happy holidays!!
<3Kris
