I have been making my own half cases for Leicas, but it shouldn't be too hard to make a nice case for an SLR. I'm still working on my Leica case, trying to fine tune the pattern. I am not out to ace Luigi or Mr. Zhou, they put out some nice stuff, but I like hand tooled leather, usually with Western designs, I have been working on some tooling patterns, hope to have something ready to tool this weekend. I'll post a photo when I have it completed. A few friends have asked me to make cases for their Leicas, so I will probably do theirs first.
Here is a rough example of one of my cases, this was my prototype case for an M2:
Criticism always welcomed