In settings where there are long established underworld thief, criminal and otherwise ne'er do wells there is going to be a system of heraldry associated with those who live in and rule from the shadows.
There are gangs, there are biker gangs, there are terrorist organizations, and then there are the Sons of Scorpions
The cliff-hunters ride sheer-stalkers vertically down the cliff faces to reach the nests of birds and steal their eggs for sport. Sheer-stalkers are vicious agile lizards about the size of large komodo dragons. They must be muzzled and harnessed, but even so there have been some nasty incidents...