I've always been fascinated by these road barriers, so I decided to make a miniature version into, you guessed it, a lamp. I took some measurements and then  modeled it in Autodesk Fusion360. I then 3D printed it and made negative molds out of silicone. Then I cast it in resin. Next I cut out some 14 guage metal to serve as a bottom and wired it up! I added dimmer switches so that the light is gradual.