Are you looking for any particular colors?
I love, love, love the scarves at Banana Republic. They're a little on the expensive side, but they hold up very well. Gap has cute ones too, and for a good bit less.
What price range are you looking for? Thrift shops can also be a great option.
Also, how do you feel about Target? Something like this might be very cute with the right outfit:
http://www.target.com/p/merona.....&LNM=|14103664&CPNG=Accessories&kpid=14103664&LID=PA&ci_src=17588969&ci_sku=14103664
And a good store sometimes has a good selection. It won't hold up quite as well, but it's in the right price range for an experiment!