Help design a messenger bag

[Grog]

I took the survey ( 20 questions fyi ) after I posted the link and it looks like it's not specifically "messenger bags" she's wanting to design, but a good, functional bag for smaller cyclists. There were questions about panniers and backpacks. I have one of the basil bags that clips onto the back rack (looks more like a purse than a pannier or bike bag) and would definitely use something like it if it had a shoulder strap.
http://www.niagaracycle.com/product_...ducts_id=21077

I have a similar basil bag and it came with a clip-on shoulder strap.

The single-sided Blossom also comes with a strap.