Like all my foodie balls have an empty hamburger box for a hamburger I have yet to get or a Subway sandwich. I got to a point where one new item per ball was a good thing, and then I stopped for awhile. Aside from the fast food, which I think I'm getting done with, I'm just going with Ebay sellers who let me pick.
But I also have a sizable collection of photoshopped food labels so when I get bored and crafty I can make Kotter Pops. Most are from Something Awful so they violate the TOS by existing but it'll make an eventual doll supermarket more fun. Or make a craft out of them, like a Mayo wreath or some jewelry.