Another entry in the strange and wonderful history of edible containers: the Fruitainer. Made by the Continental Fruit Company of Chicago, this "new taste treat" comprised orange honey jelly and citrus marmalade in an edible "natural fruit shell" made from the reconstituted, dried exocarps of oranges and grapefruits. According to Food Industries (May 1940, p. 62), it offered a "convenient and economical outlet for otherwise almost useless byproducts."
"Consumers like the package because it adds interest to the contents and solves the disposal problem," claimed Food Industries. I can't judge how much "interest" it adds, but you're still going to need a trash can: the Fruitainer itself is wrapped in cellophane, and rests upon a bed of tissue paper, nestled within a cardboard container. Instructions are included (and, apparently, needed). Bon appetit!
Consuming the Fruitainer. Image found here.