My Wife wanted "mason jar light for our newly remolded kitchen, after looking online to find those 5 fixtures could cost upwards of $1000 I decided my daughters and I could build them. Over the course of two weekends and several trips to the hardware store we now have beautiful lights at a fraction of the cost of the big box stores.
12- 12' 1"x3" boards
2- 12 pack mason jars
21- 115 volt lamp sockets
21- lamp socket hardware kits
50'- 220volt 15 amp lamp wire
35'- 3/8" hemp rope
21- 4watt LED bulbs
After this project I would change a few things, I would use smaller bulbs and different size jars, the wood boxes could be built with multiple size boards and each board could be stained a different shade.
Build boxes with 1x3" boards and stain to color taste. I drilled hole in all 4 corners for the rope to be tied. Make sure to build a solid and square box, this will make leveling the lights later much easier.
My box sizes
2-36"long x 5" wide x 2.5" high
1-48" long x 24" wide x 2.5" high
Run to hardware store for electrical supply rated for 115volt 15 amp and mount mason jars. I drilled holes through lids for ventilation. This is the most important step, I have an electrical background and would recommend speaking with an electrician or qualified store employee about wire size, connectors and lamp sockets. I found all my parts at home depot.
Hang lights with 3/8 hemp rope for rustic look, make sure to have solid support for light fixture. I found using an "A frame" rope method made leveling and hanging theses lights a breeze.
all together I built 5 fixtures using 4 watt LED light bulbs to reduce heat and wattage used. I used dimmers to create a better lighting mood for dinners or parties.