I drew the Deathly Hallows earrings/pendant + box for you. I thought that it could be an original gift for someone at Christmas, especially for Harry Potter fans.
Earrings/pendant: they are 36x34mm, which is quite large, but I didn't want them to be too small and it wouldn't print well. I recommend setting the brim of the earrings to at least 4 mm because my corners were rising.
Box: size 40x40x20 + lid, total size is 42x42x21
All printed at a layer height of 0.12mm with a nozzle of 0.4, I used a 4mm brim for the box and the earrings, infil 15%
PS: the overall model can be reduced by a maximum of 20% for those who would like large earrings, but you have to keep the height of the box because of the space for the ear hooks.
Enjoy the print