Heres just a quick video of me hitting my homemade vase bong, notice how well the dollar store marbles are at diffusing. [ame=http://www.youtube.com/watch?v=pYAC7PzuVwg]YouTube - Homemade Bong Rip[/ame]
Thanks! heres a link to the pics of it http://forum.grasscity.com/toking-tools/506455-cool-homemades.html
Your process of dropping the marbles into the vase must be very intricate and time consuming I'm sure. Cool bong, I'm a full supporter of DIY Diffusion Stones!
Not at all lol, grabbed the bag of them and poured it in, held the bong on an angle so they weren't falling to the bottom, but sliding instead.