Sorry Siren and Brooks, not trying to breach protocol here, Kinda new to the site. I havent actually found the classifieds section so, I posted the lamp here.
I've had a LOT of response from different places that I have put it up, (locally) and wanted to offer it to others away from my local area.
I guess if you have the proper tools to cut the cylinder, drill the valve and rout the base, then yes you could make it yourself, but lots of folks don't. Believe me I don't make a lot of money on these, just offering them to brothers/sisters and pickin up a little bit of cash on the side. Beats payin a landfill to dispose of the cylinders, cause you cant hardly get .02 cents a pound for em at scrap.