By popular demand: The print version of Bone Shop is available at Lulu.com. Just in time for the holidays! It will appear at Amazon.com, etc. eventually, though I understand it'll take 6 to 8 weeks to show up there. In the meantime, you can buy it at Lulu.
It's a bit pricy, which is a shame, but the high per-unit costs for Print on Demand publishing, combined with the profit margin required by online retailers, makes the high price a necessity. If you buy it from Amazon, I'll make under 90 cents per copy; I'll make rather more from Lulu, so I don't object if you buy it there. Unfortunately, it's a requirement that items sold via the Lulu Marketplace be sold at the same price (or higher) than the other online retailers, so I can't offer it any cheaper. But, hey, you can always read the whole thing for free. The print version is the same pocket-sized paperback as the other books in the series, so it'll sit next to them nicely on the shelf. And I think it came out quite well. The cover's below.
Here's the cover. (I may do variant covers, if I feel sufficiently motivated.)