[en] Relativistic heavy ion collisions offer the exciting possibility to produce exotic (meta-)stable states of nuclear matter containing (roughly) equal number of strangeness compared to the content in baryon number: Strangelets, i.e. small pieces of strange quark matter (SQM), were proposed as a signal of QGP formation. However, as their hadronic counterpart, also new multihypernuclear objects, i.e. small pieces of strange hadronic matter (SHM), may show up with rather very similar properties. This observation gives raise to the speculation that both states might have a strong overlap and correlation. In this overview we review the reasoning of both their stability and existence, the possible separation of strangeness necessary for their formation and the chances for their detection. (orig.)