Based on a decorated vase found in a thrift store - see image. The thrift store vase is two feet tall, made of dark wood, and decorated with wavy vertical grooves. Here are two openSCAD versions made from a polygon that outlines half a cross section of the thrift store vase. Grooves were added with openSCAD commands. Two additional vases were created using code that enlarged the cross section of the starting polygon. OpenSCAD code is included.