Space collectors! Canadian astronaut Chris Hadfield’s new novel, The Apollo Murders, available in a signed edition for pre-order at http://https://www.chapters.indigo.ca/en-ca/books/the-apollo-murder...
Could be interesting -- I'm waiting to see reviews for the book. Crossing over from non-fiction into fiction isn't always the easiest thing to do, but I've enjoyed his other works so far.
It's also absurdly easy to get cheap copies of his signature online -- if you find a halfway decent deal, you can get a signed copy of "Astronaut's Guide to Life on Earth" for $15 or less on EBay. He signed a lot of stuff -- I have four copies of said book and one of "You Are Here."