  This paper describes a model for baby Skyrme crystal chunks with arbitrary
potential by considering energy contributions from the bulk and surface of a
crystal chunk. We focus on two potentials which yield distinct Skyrme lattices:
the standard potential $V=m^2(1-\varphi^3)$ and the easy plane potential
$V=\frac{1}{2}m^2 (\varphi^1)^2$. In both models, the static energy functional
is minimized over all $2$-dimensional period lattices, yielding the minimal
energy crystal structure(s). For the standard potential, the Skyrmions form a
hexagonal crystal structure, whereas, for the easy plane potential, the minimal
energy crystal structure is a square lattice of half-charge lumps. We find that
square crystal chunks are the global minima in the easy plane model for charges
$B>6$ with $2B$ a perfect square ($m^2=1$). In contrast, we observe that
hexagonal crystal chunks in the standard model become the global minima for
surprisingly large charges, $B>954$ ($m^2=0.1$).
