I have rode in the 5 borough bike tour in NY for many years. Everyone always has these wonderfully whimzicle comical bike helemet covers that look like animals or abstract characters. Where do I get one of these. I looked on the web but only found one site with a very lame looking lion-like thing that wasn't 3dimentional

If there isn't a site\store that sells these are there any good instructions on how to make one

thanks alot