This is my build of an industrial style lamp, using black-iron pipe and a wine bottle.
The info for the rotary switch and the rubber sheet can be seen on the packaging and sticker, respectfully, in the video. Also listed, below.

Black Iron Pipe
1" Floor Flange (1)
1" "Close" Nipple (2)
1" Tee (2)
1" Plug (1)
1"x3/4" Reducer (1)
3/4"x1" Bushing (2)
3/4"x 2" Nipple (1)
3/4" Coupling (1)
3/4"x 8" Nipple (2)
3/4" Plug (1)
3/4" Tee (1)
3/4"x4" Nipple (1) Should have been a 6" nipple instead
3/4" 90 elbow (2)
3/4"x1" "Close" Nipple (1)

1" Compression Fitting, 6x6x1/16" rubber sheet, Gardner Bender Rotary Switch GSW-61, 1/2" gate valve, wine bottle, light bulb and 16/2 gauge lamp wire. 1/8" IP lamp rod (6-inch long), hex-nuts and washers.