I love the MCM Incense Fireplace designed by LoftedGoods available here, but wanted to add a bit of adornment to match a small ceramic fireplace I own.

This was my first project having picked up CAD a week prior, but it should be straightforward for printing and attaching! I used a small dab of super glue to secure the roof to the support poles, but it otherwise rests loosely on top of the chimney for easy removal.

Mine has held up well in PLA as it's far enough away from the incense heat source to prevent melting, but I would advise against using a chimney with anything other than a dark filament as burning incense will leave significant residue behind.