2-6" Flexible Gas Conduit (about 3/4" in diameter)
2x 1/4-20x1" Hex Bolt
1/4-20 Long Nut
Metal Saw (Sawzall or hacksaw)
1/4-20 Tap/Drill Set
UPDATE: Just came across this design on the web, looks to be a bit sturdier though maybe 10x the weight. Either way, another option!
Step 1: Prep Conduit
Pretty easy step here, cut the conduit to size and file any rough edges that may remain. I used about 4-inches since I wanted to be able to bend the tripod 90-degrees for portrait shots. As a note, I found this length to be a bit long for super-stable shots, as the weight of the camera "bounced" if you weren't careful. If you're using a heavy camera definitely go shorter! To dampen this bouncing, you might find it useful to fill the conduit with something like sand . . . but that of course adds weight!