In this work we show that the spin pendulum techniques developed by the
E\:{o}t-Wash group could be used to put very stringent bounds on the free
parameters of a Lorentz invariant phenomenological model of quantum gravity.
The model is briefly described as well as the experimental setup that we have
in mind.Comment: 9 pages. For the proceedings of the VIII School of the Gravitation
and Mathematical Physics Division of the Mexican Physical Society 'Speakable
and unspeakable in gravitational physics: testing gravity from submillimeter
to cosmic scale'