In another thread I noted that I was redoing my signals. The pole is a piece of brass tube and the “targets” are brass fender washers soldered in place. Bi-color (common anode) red/green LEDs are placed in brass tubing soldered within the fender washer and cut at an angle.
In the past the bases were made of wood cut into the shape of a pyramid with its top lopped off and painted in a concrete color. The pole simply protruded from the base. After several years of being watered and developing cracking with numerous repairs, it was time to redo the bases.
The poles and targets were retained and the new bases are real cement. A hole was placed in the center bottom of a small disposable drinking cup (wax) and the wires and pole pulled through the hole. The pole/targets/cup were inverted on the bench vice so the targets could stick down and the cup sit on the vice jaws. Cement was mixed in a plastic butter tub and poured into the cup. Be sure to work it into all the void spaces. I did this using a finger, pushing into the wet cement and adding more cement as it worked into the cup. Be sure the pole stays verticle and let the mixture harden.
Two days later, tear/cut away the cup and voila:
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