id suggest using a whole trumpet as a large sized pipe/perhaps a bong?

ive never done it cos a cone that size is out of my range..

a cone is a bowl, a bowl is a cone.
adh endo Reviewed by adh endo on . best bowl! While making a bong I was thinking..What is the perfect bowl? then it came to me, a trumpet mouthpiece! it sounds funny but it works great when a filter is attached. you can use one if you or someone you know has a trumpet like me, OR you can steal them from the music room at school or whatever. IM OUT! Rating: 5