Everyone probably knows about this but me. However just in case I’m not alone in my ignorance, there is a Virtual Shoe Museum where you can marvel at weird shoes all day long!
Check out William (Boy) Habraken‘s collection of tribal and ethnographical shoes…the largest in the world.
The Virtual Shoe Museum has a user-friendly data-base that lets you search by material (fur, feathers, plastic, wool, etc) designer, style, etc. Go have some fun!