wow youre all rookies, you dont need tin foil, carve a cone into the top (stem part) of the apple. use a thin narrow object and spear it vertically through the stem part to the bottom. spear it then horizontally so it meets the other hole. use 1 side of your horizontal as a carb and the other as a mouthpiece.

macintosh apples are preferrable


honestly dont waste your time with apples just go get a piece you save money in the end. but on occasion apples are fun and the taste is delicious