For tools, all you need is a wire cutter, wire stripper, and a drill with a bit the size of the threaded nipple. You will also need two wire nuts and a little bit of paint of your choosing.

I made a U shape with the stripped wire end and stuck it around the screw and tightened it. Once I saw what my wire length needed to be to reach the middle of my wood base with some room to spare, I cut it. Now the cut end can go through the bottle. The candelabra socket is the right size that the root beer bottles sit on it just right. I though the cardboard socket cover was horrible so I just put some brown Rustoleum on it before installing it back on.
I drilled holes the size of my threaded nipples in my finished reclaimed wood board I am using for the top of my light where the bottles will be. Mine was snug which was perfect. The hex nut goes on top here. Do this for all of them. Now separate and strip all the wire ends on top. You will need one more length of wire as well that will either be to attach to the one coming out of the ceiling for a fixture or like mine, to a switch and plug.
Since I have three glass bottle lights, I have four wires. Once separated and stripped, the hot (writing side) all go together with a wire nut. Then the other side (ribbed side on mine) all go together in another wiring nut.
Now if I was thinking, I would have turned my wood board into an open wood box because I can't flush mount mine. That is okay on mine since it will be high enough no one will see the top of it, but next time or if I do turn mine into a fixture, I will make sides for it of 1x1 inch strips of wood to hide the wires coming out of the top of it but still be able to mount it easily.