Cafepress largely has little competition in what they do.
I am sure there is demand for custom calendars, custom posters, videotapes, CD's, and DVD's that can be created and shipped according to publishers creative on demand with publishers getting a percentage. Does anyone know of such companies other than drop shippment companies that basically just warehouse your goods for shipment with high setup fees. It would be nice to have an easy solution for selling themed website merchandise without having to become a shipper, order taker, and the rest.