Here's a fun project that is a great example of ways to personalize a simple bag pattern. Three people started out with the same fabric but ended up with different looks. We each found a different coordinating striped fabric for the trim. Some pockets were altered, straps were changed, etc.
The source for the ideas came from the Label Crew by Sweetwater. The Label Crew delivers a little pattern and a set of custom labels to my mailbox every month. This bag was the most recent arrival. These are some of the labels included:
This bag is made with a product called Soft and Stable, which gives it the ability to stand up on its own power. Available at Bear Patch, of course! It was pretty easy to sew with and gave good results. You should give it a try!