Or that cookbook of family recipes you been wanting to collate. (Such a great idea. It's just a pity I can't cook very well. A cookbook of dodgy dishes doesn't seem as appetising.)
So many people I know have started up food photography as a hobby that I've lost count of the number of conversations I've had about macro lenses. (I'm still trying to find the best one for good bokeh.)
One friend, a restaurant reviewer in London, even shoots the meals we have together when he's not reviewing. Apparently many London waiters are becoming annoyed about the sight of Canon lenses poking through the napkins. I'm not surprised. It would scare the life out of me too.
(If the link doesn't work, here's the site here: http://www.latartinegourmande.com/2012/06/28/food-styling-photography-workshop-france-beatrice-peltre)