I am wanting to make a large diameter Genoa Salami for sandwiches...5-6" diameter. After thinking about it, I may just use a hog bladder. I have some 5kg. bladders. To get the shape, I have access to some 4" and 6" PVC drops. I can use that for a kind of mold to form the salami prior to trussing. Could probably make one 4-6" diameter about 12" tall.