Lulu lets authors create an account, upload a pdf version of their text, and design a hardcopy version for readers to order. You can offer the book for cost, or build in a small profit if you are so inclined. There is a wide-array of different hardcopy formats with different bindings and sizes. I have seen and used a number of Lulu's finished products and they are quite nice--especially given how reasonable their prices are.
Lulu's eCommerce engine takes care of all of the financials. They print and ship the books on-demand.
Full disclosure: I am in no way connected to or compensated by Lulu, it's just the one self-publishing site I am familiar with. I'm sure there are others. If you know of others, leave them in the comments section.