  Prompt $\rho\propto r^{-1.5}$ density cusps are the densest and most abundant
dark matter systems. If the dark matter is a weakly interacting massive
particle (WIMP), recent studies have shown that prompt cusps dominate the
aggregate dark matter annihilation rate. This article explores whether
individual prompt cusps could be detected as gamma-ray sources. At the Fermi
telescope's point-source sensitivity, WIMPs with the canonical annihilation
cross section could form detectable prompt cusps if the particle mass is of
order 10 GeV. These objects could be 10-100 pc away and weigh under a solar
mass; they would subtend around 0.1 degrees on the sky. For GeV-scale dark
matter particles with below-canonical cross sections, searches for individual
prompt cusps can be more sensitive than searches for the annihilation signals
from galactic dark matter halos.
