  We show that in superfluids with fermionic imbalance and uniform ground
state, there are stable solitons. These solutions are formed of radial density
modulations resulting in nodal rings. We demonstrate that these solitons
exhibit nontrivial soliton-soliton and soliton-vortex interactions and can form
complicated bound states in the form of "soliton sacks". In a phase-modulating
(Fulde-Ferrell) background, we find different solitonic states, in the form of
stable vortex-antivortex pairs.
