depending on which method you'd perfer best ways are with a really thick glassed beer bottle (preferebly 24 oz or larger) and a barstyle beer mug

bottle - grab the materials you'll need ahead of time (after letting the bottle sit in the freezer for a few hours, over night is best) a sweet or joint will work, a straw and of course the bottle. light the sweet/joint and shotgun it into the bottle (stick the fire end in you rmouth and the mouthpeice in the neck of the bottle, and blow, filling the bottle up with smoke) take the straw suck the smoke out.

mug - same process, a few hours, over night is best, this you won't be needing a straw (tho it will be lest wasteful) and still a sweet/joint. shotgun it into the mug, upon the smoke entering the mug, most of it will be chilled really cold, tho some wont. thus it's not heated and doesn't rise, i.e. staying in the mug till "dumped" upside down, you then "drink" the smoke (not actually swallowing it, you til the glass as you woudl to drink, but instead of swallowing you inhale the smoke as usual).

i never really saw any point in either, there are much easier and less complicated means, and more effective ways of cooling smoking, and it doesn't in any way get you any higher... i guess it's just fun to do sometimes cuz it does look pretty sweet. anyone that claims otherwise is either misinformed or plain out lying. i've done this multiple times (to show new people) and it never added anything extra i coudln't get from just filling my bong up with ice cubes and smoking like that.