I love Talenti Gelato, and always think it's a shame to throw them away. They are a transparent, thick, food safe container.
Made a set of inserts with various compartment sizes and minimal filament required. If printinging with a 0.4mm nozzle, all walls should come to 2 walls and 4 bottom layers with no infill.
I printed mine both in cheap Sunlu Filament and nicer Creality and Prusament PETG. Printed on a modified Neptune 4. Should be cake walk for all printers with the 1st layer calibrated.
Very satisfying, snug fit.
The author marked this model as their own original creation.