Just had a thought…on design #7, what we switched where the two letters overlapped each other? If the "O" crossed over the "G" on the bottom, and the "G" overlapped the "O" at the top, wouldn't it create a small "r" with the top half of the "G"? I know this is a little confusing, but if that "r" were in a different color (maybe a shade of green), it would be easily recognized and it may be done while maintaining the overall appeal of the O-G.