Pashminas are actually usually pretty cheap-- you can get a thin one for about ten dollars, I think. Thin ones are better anyway, since I have a thick cashmere scarf that I love to death (because it's orange), but I can't really wear out because it is so. freaking. hot. I would wear my electric blue pashmina every day if I could, except that it's a little hard to coordinate a wardrobe to something electric blue...

I *think* there is a pushcart in my neighborhood shopping mall that sells shawls, but I have to check for you. Good bets are places that sells Malay clothes 'cos they tend to have nice selections of shawls & headscarves