when i make my apple pipes i have a carb on one side a pen out the other and the top i use as the bowl piece. u stick the pen in where the stem comes out and then shove the pen in the side where u want the carb then in the side u want to smoke from then u take a knife and hollow out the top where u put the herb in and that how u can make a bowl out of an apple or u can go by the picture but i never done it like that