There are many 3D printed items that sell well. Some of the best things to print and sell with your 3D printer include miniatures
(D&D, Warhammer, etc.), cosplay items (helmets, armor, props, etc.), jewelry, toys and Nerf gun accessories¹.
You can also sell your 3D-printed items on online marketplaces such as Etsy²³ or Thingiverse⁴.

I hope this helps! Let me know if you have any other questions.

There are many laser engraved or cut products that sell well. Some of the best selling laser cut products include Christmas reindeer door hanger
SVG, Christmas marshmallow ornament SVG, kid’s puzzle laser cut file set of 8, Arabesque Nativity ornaments and Christmas stud earring laser cut bundle¹.
 You can sell your laser engraving products on online marketplaces such as Etsy²³ or Concept Laser Co⁴.

I hope this helps! Let me know if you have any other questions.