Summary

When lying over their open sides these three objects seem to be the three Johnson solids, J5, J6, and J25. When turned over they are found to be bowls. These three are among a number of Johnson solids that resemble bowls; J5 is call a pentagonal cupola, J6 a pentagonal rotunda, and J25 a gyroelongated pentagonal rotunda. OpenSCAD code is included.