This prints directly on the plate with no need for external supports, just need to hollow, create appropriate holes and make sure to support the inside.
The correct size for a tealight candle to fit nicely for this is roughly:
X:59mm Y:59mm Z:52mm
Anything smaller than that won't fit a tealight candle.
Created it for a friend's birthday and thought why not share the design with everyone :)
Soulwell_Tealight_Candle_Holder.stl |