Print a mold for a floating candle!

STL contains two identical halves which form a single mold.
Note: Requires some work after printing.

After printing, sand the inside of the mold and coat it with epoxy to get a smooth finish. Clamp together and pour in the wax at around 160F - much higher and the PLA will melt!

Don't forget the wick!

If you prepared the inside sufficiently, it comes out smoothly and easily. The rocking action permitted by the mold teeth was extremely effective.

See my blog at wgprojects.blogspot.com for more details.