How about a turban? You could go for a Sikh turban:
http://www.sikhnet.com/pages/tyingturbans
or a Muslim one:
http://www.youtube.com/watch?v=9r1_HfOMRBM
I'm sure you could go to a local gurdwara or mosque and ask for pointers. They'd probably be over the moon.
It's also not particularly hard to look verging-on-homeless poor.