Hi, this is a very easy concrete lamp, built from a shaker bottle...
For this one I used a plastic shaker bottle. A 30mm hole was made with soldering iron at the bottom for the socket to be mounted.
You need cord with switch and plug pre-installed, an E27 socket and a chair protective pad. Make a 14mm hole to pass the cord through, and attach the pad which protects the cord from extreme bending. Then make a 8mm hole at the bottom of the socket, again pass through the wires and connect them
Insulate all holes with super glue or hot glue. In my case, just my two cents...
Use the bulb to secure socket in place. I used a socket corral as a spacer.
Prepare and will the shaker.
Next day, cut the shaker with a soldering iron and carefully remove it.
Wet sand the bottom with 100 or 150 grit wateproof sand paper and the body (you can skip this one) with 600 or 800 grit.
After some fine-sanding it looks perfect, isn't it? Dont forget the self adhesive rubber pads.
Add a bulb that you like. Enjoy!