  Experimental and theoretical studies of linear and nonlinear optics of
surface plasmon toy wormholes and black holes have been performed. These models
are based on dielectric microdroplets on the metal surfaces and on nanoholes
drilled in thin metal films. Toy surface plasmon black holes and wormholes are
shown to exhibit strongly enhanced nonlinear optical behavior in the frequency
range near the surface plasmon resonance of a metal-liquid interface. Various
possibilities to emulate such nontrivial gravitation theory effects as Hawking
radiation and Cauchy horizons are discussed.
