This is a ring holder for almost any green lantern ring. I designed it in Fusion 360 based off the 1984 Kenner Super Friends toy.
There is a cutout at the bottom for a led tea light available almost anywhere. There is also an additional cutout in the ring holder pillar if you want to get fancy with fiber optics.
I split the model into 2 pieces for easier FDM printing and it also makes it easier to sand for both FDM and SLA. The tolerances are tight and the pins may not be needed.
The ring pictured was created by Bolnarb and is available here:
The final model was airbrushed with Alclad transparent green and Alclad smoke.
I've printed this in Hatchbox PLA at 20% infill. There are overhangs on the inside that may be troublesome and your supports may ruin the lantern symbol if printed completely upright.
Also printed with FormLabs durable (greenish/blue) and clear resins. When printing with SLA, the model was tilted around 45 degrees with the base pointing up (base closest to the build plate).