MTG related gift for someone that has everything?

I work with someone that got me back into Magic. They have given me upwards of $50 worth of cards so far and say it's no big deal due to them having thousands of cards.
They're excited for The Hobbit series but have already mentioned they will probably spend $1,000 or so on it. They make their own deck boxes, have already done their own proxies, and seem like they're just trying to bring in others so they have more people to play with (which I appreciate).

I'm looking for an MTG related gift to give them.

Seasoned players; What would you enjoy as an MTG related gift?