Easy to print simple “what-not” trays for holding small parts, screws, etc.. There is plenty of room between the stacked parts for screws or whatever.  That way you can easily separate the parts of some project.

You can even stack the circular trays on top of the others.

Deep fillet on the bottom to make it easier to fish out those small screws and the like.

Printing

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I typically use 3 walls and lightening infill.