To celebrate the 7th anniversary of Pokémon GO, I decided to create some little Pokémon egg-shaped boxes. Each has an inner and outer shell that can be rotated to open or close the center. They print in place with no supports or assembly required.
I couldn't decide whether I liked the patterns better embossed or debossed, so I overlaid them in a way that they protrude outward, while the underlying shells feature negative imprints of their respective patterns. So, if you prefer the patterns to be inverted, you can easily achieve this by splitting the models in your slicer software. (PrusaSlicer/BambuStudio: right click on model > “split” > "to parts/pieces" Then, delete the patterns' meshes from the model list.) There is also a plain egg without any pattern.
In addition to the single-color versions, I have also included multicolor files for Bambu Studio. Enjoy :)