aluminum could become harmful after extensive use. there are many, many ways of smoking marijuana.

smoking out of an apple works well. all you do is stab a disassembled pen (bics work best)about an 1/2-1 in. into the stem of the apple and then stab another hole at a 45-90 degree angle. put the weed in the hole at the top and keep the pen in the angular tunnel you stabbed. light the weed, inhale. not insulting your intelligence or anything, but remember to take the apple out of the pen...i've forgot myself. of course if your by yourself you have nothing to worry about and no one to laugh at you...hahaha.

there are much more creative ideas on the board besides mine...feel free to explore your possibilities.