Although I would expect 1953's 500 Delicious Dishes from Leftovers to include some of the most appalling creations, their variations are not incredibly crazy:
Many of these actually sound pretty good, although most of the additions this calls for don't strike me as the kinds of problematic leftovers readers will need to use up. It might be nice to tell yourself that you're just making chocolate waffles as a thrifty way to use up leftover chocolate, but nobody's going to buy it-- not even you, if you're being honest.
By the way, the book offers no recipe for waffle batter (doesn't even mention the amount of batter these suggestions were designed to be used with!), another reminder of how much recipe writers used to depend on their readers' cooking experience.
The Farm Journal's Timesaving Country Cookbook (1961) will probably appeal to a lot of people too, but my stomach hurts just thinking about it:
I'm sure Elvis fans would serve these with sliced bananas.
This last recipe, from Better Homes and Gardens Meat Stretcher Cook Book (1974), probably sounds just as good to you as it does to me.
Suddenly the chicken and waffles chips don't sound quite as bad. That's not the same as good, but it's something.