For this Halloween, I was looking for a fun way to create an essential oil diffuser cauldron like a few products that exist already on the market. I couldn't find any good analogs for 3D printing, so I decided to remix this wonderful cauldron design by sifugreg, add a bit of extra detailing with the gorgeous pattern ring by MaeLee.

As for diffusers, I chose the 130ml round LED "flame style" on Amazon:
(ASIN# is B0BF4Y3B1D, and is called the "Rican Aromatherapy Diffusers, Flame Aroma Diffuser").

This project needed:

• 6 5x2mm round magnets
• superglue

Steps:

• Print all parts.
• Glue in 3 magnets on both cauldron halves, so they can snap together.
• Glue the liquid top around the edge of the cauldron top.
• Glue the power button over the diffuser's power button.

Advice:

I used variable layer heights in PrusaSlicer to preserve as much detail for the patterned rings as possible, but kept the other layers higher to reduce print time.

I also used "fuzzy skin" in PrusaSlicer to mimic a rough cast iron finish.