I have a lot of fake food in my apartment, but I'm picky about it. Old plaster food, like from the '50s is really nice, hollowed out paper-mache food from old plays - the new stuff just looks too good.
I love theatrical props: a cup filled with solid fake tea, say, or a collection of fake food, including a rubber turkey, which, during the holidays, I wrap in tinfoil so it appears to have just come out of the oven.
I love old cookbooks. I just got such a kick out of them, how the color would be way off or fake looking. The cook books now look so much like magazines, you'll never make food that looks like that. I'd rather see it the ugly way than they way they do it now.