Gostelowe Flag No. 6 (created by Clarence Harrison)
I want to draw everyones attention to a wonderful link if you need flags for your AWI units. It is Clarence Harrison's "Quindia Studios" blog. (click on the live link at the left in this line).
Clarence has created his own flags that mainly cover various state militia, Continental, and those curious Gostelowe flags. He has also created some "generic" flags that are based on reasonable speculation that follow period conventions (such as using a 13 stripes motif). There are many good flag choices to use in your own AWI units, so I encourage you to visit Quindia Studios and look at what Clarence has to offer on his blog.