If you are looking for sovenirs to take home, start with the jail in Koror for a good look at

storyboards.  They have a great variety of storyboards at the jail, but you can find better 

prices at other places like Rock Island Cafe on the main street in Koror.  They had

storyboards hanging on the restaurant walls that were of good quality and reasonable

prices. 

The other place that has great bargains and many other items, was the Ben Franklin

Center department store.  You can find really nice Aloha shirts at Ben Franklin.

They also have scads of t-shirts at the above store that are inexpensive.