I still need to oil this one before I test it tonight, but I like it so far.
I think he did a nice design. It's a little over 7 inches long and this one is from red oak.

We have a couple of other ideas I want to try, and I definitely want one with stainless screws so you can change blades. I cant imagine really needing to change blades, but I'm a clean freak so I still want one I can dis-assemble. I'm also not sure how much of the razor blade should be exposed. This one is rigid, which is probably good, but I want to test one thats more flexible too.

I may put some on ebay if we get a really good design.

Anyone have any suggestions?