Four simple bowls based on regular antiprisms - trigonal, square, pentagonal and hexagonal bowls. Note that the trigonal antiprism is a regular octahedron. Wall thickness is set at 2 mm so all the bowls print quickly. Turned over they can be taken for regular antiprisms.

Two additional containers, with lids, based on antiprisms which have been elongated along z so that the equilateral triangular faces are now made of isosceles triangles, are included. One a pentagonal antiprism, a second an octagonal one.

All pieces print without support.

OpenSCAD code is provided.