Making a bong...??

[NMTBxxHTSP]

the flipped pen tip thing works but its so tiny. i used it to make a one hitter once.

[cameron123240]

yo man, use a trumpet mouth piece, works great, fits directly into sum pens.
or if u wanna totally lose ur brain, use a trombone one, lik 2x as big. make sure their clean tho.

[xplodingmonkey1]

try a salt shaker top

[50BagOfGreens]

^it works best i know from experience

[Green Screen]

Salt shakers and trumpet mouthpieces for the win.