This is a recreation of a samducksa lamp holder made for mounting a small WS2812B round pcb at the top, allowing the wires to go through it and come out of the side.
I have done this to avoid modifying my original lamp holders, since removing the contacts for the LEDs is a bit tricky and I was afraid of breaking the plastic.
I printed the model with a .6 nozzle at 0.3mm layer height in the orientation shown in the pictures using tree supports, which yielded a secure fit inside CWB405 buttons (IIDX 33x45).
I used a drop of hot glue to secure the pcb on top.
There are two versions of the holder, I have only used the version with the single peg and I have secured each switch with a M3x16 bolt and nut. The second version has two pegs that go through the holes on the switch, but I did not use this myself because I was concerned of the long term durability of the pegs, although the fit is quite snug.
Also included is the step files, feel free to edit the models however you like to fit your needs.

The author marked this model as their own original creation.