My mother, who is from Sicily, wanted an Arancini maker. Sure enough I found three models on Thingiverse and made this one. The only challenge I had was the overhang on the "press" component. It printed without support, but was at the edge of working. If I print another, I will tweak that a bit. Otherwise it seems to be working as shown by the sample arancini in the photo.

NOTE: If your 3D Printing anything that is to be used in contact with food, please understand the steps that must be taken to achieve a safe result.