Retrograde pentagrammic cupola

The retrograde pentagrammic cupola, or rastacu, is one of the 92 Johnson solids (J5). It consists of 5 triangles, 5 squares, 1 pentagram, and 1 decagram. It is a cupola based on the pentagram,

It can be obtained as a segment of the quasirhombicosidodecahedron.

Related polyhedra
The pentagonal cupola is the pentagram-first cap of the quasirhombicosidodecahedron.