Halloween - I just took some large marshmallows and added eyes with a Sharpie. Then I just printed the name of the food item on some red scrapbook paper and tore it around the edges and attached it to a popsicle stick which I inserted into the marshmallow.
DIY Mickey Mouse Ears, from wikiHow I used felt and double layered mine. The hot glue between the layers made them stand up on their own once it dried. They'll last longer and hold up to lots of play time.