I have an idea for a new bussiness that would involve rubber flip-flops/slippers, but I know nothing about rubber and plastic. I am looking for information about the different kinds and other materials used in the production of flip-flops. I would prefer to use some less toxic substances and buy them from a reputable source. I am also interested in finding out if there are any trade publications and info about the "flip-flop" industry. I have been searching the internet and looking for books at the library, but so far I have come up with very little. Any suggestions would be much appreciated! TIA!