  We analyse spherically symmetric geometries, combining a cosmological patch
and a Schwarzschild black hole patch joined via a singular co-dimension 1
hypersurface. In a general analysis applicable to dimensions greater than
three, assuming an arbitrary homogeneous and isotropic cosmology, we derive the
stress-energy tensor of the hypersurface in terms of the cosmological energy
density. This analysis reveals a novel exact solution featuring radiation
within the cosmology and a shell composed of pressureless dust. Exploring the
parameter space yields twenty-two distinct solution families, including `bubble
of cosmology' and `Swiss cheese' spacetimes. Notably, solutions with a negative
cosmological constant exhibit a holographic dual. Additionally, we provide a
pedagogical introduction to hypersurfaces in general relativity and a practical
approach for constructing thin shell spacetimes.
