Last time I bought bulk vinyl I was told there are two grades of vinyl, naugahyde and the cheap thin crap. I bought the naugahyde for recovering motorcycle and snowmobile seats and the good stuff is easily twice as thick and has a nicer texture as a result. I am sure there are other grades with different textures but reality is you can only buy what suppliers have in stock. With some searching online I am sure you can find many varieties of colors and textures to suit your tastes. This web page
that lists bulk vinyl material, give them a try. I found these in 30 seconds of searching so try searching Google online using vinyl, bulk, material as search criteria. There were 40 000 hits using these search words.