A hollowed version of the original that keeps the outer shell closed, works well with glow in the dark filaments.

Scaled to around 220% it should fit most common LED tea lights.

If you are not sure your LED light will fit, measure the diameter and height of the light. Then use simple shapes in the slicer (I use a cylinder for the base and a cone for the “flame”) to roughly model the light. Place the shapes inside the hollowed dog model and scale the dog until it fits.