  The topologically protected magnetic spin configurations known as skyrmions
offer promising applications due to their stability, mobility and localization.
In this work, we emphasize how to leverage the thermally driven dynamics of an
ensemble of such particles to perform computing tasks. We propose a device
employing a skyrmion gas to reshuffle a random signal into an uncorrelated copy
of itself. This is demonstrated by modelling the ensemble dynamics in a
collective coordinate approach where skyrmion-skyrmion and skyrmion-boundary
interactions are accounted for phenomenologically. Our numerical results are
used to develop a proof-of-concept for an energy efficient
($\sim\mu\mathrm{W}$) device with a low area imprint ($\sim\mu\mathrm{m}^2$).
Whereas its immediate application to stochastic computing circuit designs will
be made apparent, we argue that its basic functionality, reminiscent of an
integrate-and-fire neuron, qualifies it as a novel bio-inspired building block.
