These are prototypes for ice luminary (aka ice lantern) mold masters that I'm experimenting with for a friend at our local Makerspace. As I understand it, the mold masters have plastic drawn down over them by a vacuum forming machine. The vacuum formed plastic parts are then filled with water and frozen. The ice is then removed from the mold and an LED "throwie" is placed in the pocket under each one. These have to be kept fairly simple so that the mold master and the ice can be easily removed from the vacuum formed molds. These could also be used as-is if printed in T-Glase or some other transparent filament. But in that case, they could be made a lot more complicated because their would be no mold release constraints. I may be adding or deleting files as they are tested. The Cavity for the LED throwie is about 27.5mm in diameter. If you need a bigger hole for an LED tea lamp, I suggest scaling up the entire part before printing by the appropriate amount. Modeled in DesignSpark MechanicalPrint in the default orientation. The small central hole and funnel at the bottom is to allow an air passageway for the plastic to be drawn down in the cylindrical pocket where the LED throwie will be placed.