Spiral vases Matroshka style

I've made it a habit to print a sample vase whenever I buy a new kind of filament – be it color or material. These vase models are designed to fit one into the other with a spiral shape and diameter step up/down of 4mm (except for one with 3mm, but don't ask me what I was thinking at that time...). Depending on printer tolerances, they should slide into the next-larger one with an air cushion dampened motion (and an annoying grating sound if not).

2019-07-29 UPDATE: Added sizes 104,108,112 mm