just a little pointer, ive made a couple of these for my bong smoking, and ive found that one sheet on the front isnt very effective. Try layering up a couple 4(is about the max you can work with easily). Otherwize, the smoke tends to just follow the path of least resistance, against the inside edges of the tube, and out the ege of the dryer sheet on the end...so it only goes through ONE dryersheet....once...

i say sticky this thread for steal smoking, cause it has those gorgeous piccies.