Before I knew much much better, I built a homemade ice bong out of a plastic tennis ball canister. I used aquarium air tubing out the top for inhaling and for connecting a hash pipe to the body of the canister. I'd fill it with ice only. I'd pack a bowl, connect the pipe, then hold my finger over the carb hole at top and pull until the canister was full then let the ice do its job. I then let my finger off the carb hole in the lid and cleared the chamber. It worked great. Only trouble is all that off-gassing from the plastic couldn't have been good for me.
I also made a few homemade pinch hitters from old diesel injector lines. All I had to do was cut them to length then bore out one end with a drill press then bevel the edges a bit. If only I had the wood shop skills back then to make a dugout I could've had the whole kit!