From time to time weird unsourced flags show up on Wikipedia. Earlier this year, a user named EG111111 uploaded flags for each of the seven provinces of Equatorial Guinea, listing only “Own work” as their source.
This one is the most conventional, and the easiest one for me to convert to vector image. Some of the others are… well, see for yourself. Where did they come from? Did EG11111 invent them or document real world flags? I’m guessing it’s the former, but it’s tough to say one way or another. Just another reason why you should be wary of Wikipedia.
(designer: EG111111 [?])