"Where did you get your materials?" is the most common question I hear in the conversations I have had about DIY footwear. Durable threads, different kinds of cement, natural & synthetic fibers... all that!
What materials do you use and where do you get them?
MODERATOR'S NOTE: I am pinning this question to the top of the forum, as I imagine that this will be a common question people will be asking for quite some time. Let's try to make this thread the definitive resource for all things to do with sourcing DIY materials.
These guys sell all kinds of sheet rubber. Maybe some of them would be appropriate to use for soling material:
http://rubbercal.com/