This tool allows you to grasp a H11B automotive lamp with a 19mm socket or wrench.
My wife's Veloster Turbo had a headlight go out and we discovered, and then confirmed with a quick forum search, that it's nigh impossible for anyone with a normal sized hand to grasp and rotate the lamp base due to it's recessed location in the headlight module.
Lacking offset pliers or the desire to remove the whole headlight (which requires removal of the bumper cover) I quickly designed and printed this socket adapter which makes it easier to handle the bulb in your fingers as well as apply sufficient torque to remove and install the bulb with 3 clicks of a socket wrench.
ABS plastic recommended for strength. I used 3 shells and set the solid layers to 5 on top
Your slicer will likely start/stop each loop on the inside corner of the mating surface. You may need to file this down.