How to make homemade bongs/bubblers/double bubblers

i have a double bubbler made out of a 64 oz gatorade bottle, a small water bottle, a piece of thinn hose and tinfoil. i was wondering if anybody had any suggestions of making a better bubbler or bong since i dont got the funding to buy one

 

The more air tight the better

 

u could make a gravity bong. They are easy to make and u dont need to much supplies. milk jug (1 gallon) That works the best. Just in case u do not know how to make one i will briefly tell u.

Take jug and cut off the bottom,

put whole on cap on top for the bowl. U can use a socket from a tool set, a regular bowl n stem works the best.

fill up a thing of water, make sure u can submurge the milk jug all the way to the top.
put the whole milk jug all the way in the water and let the lid with socket stick out/

fill ganja in socket or bowl, light up and start pulling the milk jug up. u can figure out the rest from there! good luck with ur home made bong and such. I love makin bongs its fun and cheap!

 

you could use a glass bottle with a wide lid. i could never find the glass cutting supplies so I always used the lids.