yeah you can make a bong out of bull kelp with basically three cuts. You need to find the end that has the bladder (that floats on the surface and the kelp fronds stretch out from. You cut up the tube at the length of the bong tube that you want to hit from. Then cut off a 5" section from farther up the tube where it is narrower, stab a small slit in the bladder and shove the 5" section of tube in to serve as the bowl/stem. Voila, a bong.