Okay you remember that one episode of Ben 10 Omniverse where there were multiple versions of Ben 10 some good some evil and they all thought against each other this idea was to come up with a bunch of short stories explaining their origin of the bens  that we don't know. For example the Ben 10 in a straight jacket I mean what's his story seriously what led to him being in a straight jacket and kind of insane.

This idea kind of got lost and never really made it to the light of day but if you guys wanna have a go at it be my guest