Topological defects can also be found elsewhere in biology, e.g. in microtubules. Research of those structures has pioneered another very recent field of research; topological mechanics. Prodan and Prodan have shown initially that topological vibrational modes can be localized at microtubules edges \cite{Prodan_2009}, which can also be recreated in simple mechanical models. Meanwhile, the field of topological mechanics has evolved fast whereby the most striking examples are the mechanical analogues of the quantum Hall and spin-Hall effects. The latter requires a half-integer spin that has no direct equivalent in the classical realm.