Tom Mighell over at Inter Alia reports on a cool service called PublicDomainReprints.org whereby you can order a reprint of a book in the public domain. Here's how it works:

1. You request any public domain book from the Internet Archive or Google Books.

2. The book is processed and submitted to Lulu, a no upfront fee print on demand company.

3. You can order the printed book from Lulu at $1 over cost.

Printed reprints currently are priced between $4.99 and $18.99 depending on the number of pages, and in soft cover, perfect binding. Shipping costs extra.