Cone
From Wiki Weed
The European style of joint, which is slightly conical rather than straight, getting wider towards the end. Most cones also include a rolled paper “crutch”, which works to keep the weed from falling out the small end, but also helps aerate the joint so the resin doesn’t cake the end shut. In Amsterdam and many other places around Europe, smoking joints with pure cannabis is rare — most locals will be found with a mix of cannabis or hash and tobacco.