Eastgate has a bunch of these 6x9 traveljournals. They're made in Tuscany, with hand-crafted marbleized paper. They artist who makes these floats the oil colors in a basin of water and then pulls a single image, so every cover is unique.
These covers are bonded to light but strong boards, making alovely 320-page blank book filled with creamy, acid-free pages. They're $49.