To be honest, I doubt that a driver/guide cares much for a bumper sticker. Also, the drivers might change cars so we would end up promoting the wrong ones.
Further, I doubt that we know enough guides to make a fair vote. I see it coming that we have 7 members nominating the one driver they know and all 7 drivers will receive one vote each
I believe the camp/lodge should be held responsible for their drivers, hence only receive the nomination if the driver also complies to our rules. To be honest, I doubt the lodges or camps will care much for our sticker either but maybe just a tiny little bit more. Remember, not a single camp or lodge is so far promoting us in any way.
I remind you that we had a similar idea in the past. We were intending to get wood carvings of the bush-drummer done by the colobust trust (of course made of alternative wood). These carvings would then be given to the lodges that we believe worth praising for their effort and complying to our standards. They can put the carving on their reception desk which will draw much more attention than a sticker next to the exhaust-pipe covered in dust and smoke.
The next step would be to let the camps sell these carvings with a part of the money going back to the colobus trust, some to the camp and some to a yet to be nominated organization.