how about making a deal with farmers. A couple of RasPi or Arduino and some IR detectors. Have them placed near those gigantic industrial chicken coop. their head movement would cut the beam and the timing would generate the data.
Not safe. A clever attacker will hide a kinect in there and figure out your numbers. Nevertheless, it would certainly be the funniest RNG ever invented
Beside hacking the Raspberry themselves a camera of any sort would not work as the chicken's head are the seed providing the final calculation in the algorithm. Also it won't be in one location.
It is a fun concept would bring the farming world, RNG and bitcoin together
