  Stochastic physics is a central pillar of modern research in many fields, but
is rarely presented to undergrad students in a hands-on experiment. Here, we
demonstrate how a human-scale, simple, and affordable experimental setup can be
used to fill this gap, and to illustrate many advanced concepts in a
step-by-step approach. Based on a metal wire (such as a guitar string), our
setup facilitates the observation of fluctuating dynamics in the time domain,
the frequency spectrum, and in the rotating phase space. The latter allows
introducing time-dependent cross-correlations between the sine and cosine
quadratures of the stochastic motion, which feature deterministic order even in
the absence of any deterministic forces.
